2021 in paleomalacology

List of years in paleomalacology
… 2018 2019 2020 2021 2022 2023 2024 …
In science 2018 2019 2020 2021 2022 2023 2024 In paleontology 2018 2019 2020 2021 2022 2023 2024 In paleomammalogy 2018 2019 2020 2021 2022 2023 2024 In paleobotany 2018 2019 2020 2021 2022 2023 2024 In arthropod paleontology 2018 2019 2020 2021 2022 2023 2024 In paleoentomology 2018 2019 2020 2021 2022 2023 2024 In paleoichthyology 2018 2019 2020 2021 2022 2023 2024 In reptile paleontology 2018 2019 2020 2021 2022 2023 2024 In archosaur paleontology 2018 2019 2020 2021 2022 2023 2024
Art Archaeology Architecture Literature Music Philosophy Science +...

• Paleontology portal
• History of science portal

This list of fossil molluscs described in 2021 is a list of new taxa of fossil molluscs that were described during the year 2021, as well as other significant discoveries and events related to molluscan paleontology that occurred in 2021.

Ammonites

New taxa

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Abichites infirmis [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran
Abichites ovalis [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran
Agathiceras iranicum [2]	Sp. nov	Valid	Korn & Ghaderi in Korn et al.	Carboniferous-Permian boundary		Iran
Alienisphinctes [3]	Gen. et sp. nov	Valid	Énay & Mangold	Late Jurassic (Kimmeridgian)	Jubaila Formation	Saudi Arabia	A member of the family Ataxioceratidae. The type species is A. cavelieri.
Amaltheus orientalis [4]	Sp. nov	Valid	Nakada et al.	Early Jurassic (Pliensbachian)	Kuruma Group	Japan
Arasella falcata [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran	An ammonite of uncertain placement, probably a member of the family Xenodiscidae.
Arcestes lawsi [5]	Sp. nov	Valid	Taylor, Guex & Lucas	Late Triassic (Rhaetian)	Gabbs Formation	United States (  Nevada)
Arnioceras ritterbushi [6]	Sp. nov	Valid	Taylor & Guex	Early Jurassic (Sinemurian)	Sunrise Formation	United States (  Nevada)
Arnioceras sparsum [6]	Sp. nov	Valid	Taylor & Guex	Early Jurassic (Sinemurian)	Sunrise Formation	United States (  Nevada)
Artyomites [7]	Gen. et sp. nov	Valid	Smyshlyaeva & Zakharov	Early Triassic (Olenekian)		Russia	A member of the family Palaeophyllitidae. Genus includes new species A. antiquus.
Aulatornoceras frenklerae [8]	Sp. nov	Valid	Söte et al.	Devonian (Frasnian)	Sand Formation	Germany	A member of the family Tornoceratidae.
Aulatornoceras steinhauseni [8]	Sp. nov	Valid	Söte et al.	Devonian (Frasnian)	Sand Formation	Germany	A member of the family Tornoceratidae.
Aulatornoceras ventrosulcatum [8]	Sp. nov	Valid	Söte et al.	Devonian (Frasnian)	Sand Formation	Germany	A member of the family Tornoceratidae.
Boucaulticeras hawthornensis [6]	Sp. nov	Valid	Taylor & Guex	Early Jurassic (Sinemurian)	Sunrise Formation	United States (  Nevada)	A member of the family Schlotheimiidae.
Bullatimorphites szontaghi [9]	Sp. nov	Valid	Galácz
Caloceras avus [10]	Sp. nov	Valid	Kment	Early Jurassic (Hettangian)
Catrisimoceras [11]	Gen. et comb. nov	Valid	Nannarone & Bilotta	Late Jurassic (Tithonian)		Italy	A member of Perisphinctoidea belonging to the family Simoceratidae and possibly to the subfamily Lytogyroceratinae. The type species is "Simoceras" catrianum Zittel (1870).
Cheltonia howarthi [12]	Sp. nov	Valid	Simms & Edmunds	Early Jurassic		United Kingdom
Cibolaites petraschecki [13]	Sp. nov	Valid	Wilmsen et al.	Late Cretaceous (Turonian)	Brießnitz Formation	Germany
Clivotirolites [1]	Gen. et 2 sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran	A member of the family Dzhulfitidae. The type species is C. decoratus; genus also includes C. petilus.
Crassotornoceras hetzeneggeri [8]	Sp. nov	Valid	Söte et al.	Devonian (Frasnian)	Sand Formation	Germany	A member of the family Tornoceratidae.
Crassotornoceras nudum [8]	Sp. nov	Valid	Söte et al.	Devonian (Frasnian)	Sand Formation	Germany	A member of the family Tornoceratidae.
Crioceratites claveli [14]	Sp. nov	In press	Bert et al.	Early Cretaceous (Hauterivian)	Vocontian Basin	France
Didymoceras morozumii [15]	Sp. nov	Valid	Misaki & Tsujino	Late Cretaceous (Campanian)	Hiketa Formation	Japan
Dimorphodiscus [16]	Gen. et sp. et comb. nov	Valid	Vermeulen et al.	Early Cretaceous (Barremian)		Algeria Crimea   France	A member of the family Holcodiscidae. The type species is D. lerisae; genus also includes D. uhligi (Karakash, 1907), D. sayni (Joleaud, 1912) and "Metahoplites" postnodosum Vermeulen et al. (2017).
Discoscaphites mullinaxorum [17]	Sp. nov	Valid	Witts et al.	Late Cretaceous (Maastrichtian)	Corsicana Formation	United States (  Texas)
Domanikoceras martenbergense [18]	Sp. nov	Valid	Korn	Devonian (Frasnian)		Germany	A member of the family Tornoceratidae.
Dzhulfites brevisellatus [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran
Eoasianites baghevangensis [2]	Sp. nov	Valid	Korn & Ghaderi in Korn et al.	Carboniferous-Permian boundary		Iran
Eoermoceras [3]	Gen. et 2 sp. nov	Valid	Énay & Mangold	Middle Jurassic (Bajocian)	Dhruma Formation	Saudi Arabia	A member of the family Stephanoceratidae. The type species is E. glabrum; genus also includes new species E. angulatidomus.
Eolytoceras rohrbachensis [10]	Sp. nov	Valid	Kment	Early Jurassic (Hettangian)
Esfahanites [1]	Gen. et sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran	A member of the family Dzhulfitidae. The type species is E. armatus.
Eutomoceras paladeji [19]	Sp. nov	Valid	Tongtherm, Nabhitabhata & Tuanapaya	Triassic	Chaiburi Formation	Thailand	A member of the family Ceratitidae.
Eutomoceras wantanae [19]	Sp. nov	Valid	Tongtherm, Nabhitabhata & Tuanapaya	Triassic	Chaiburi Formation	Thailand	A member of the family Ceratitidae.
Evopharciceras [20]	Gen. et sp. et comb. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany   Morocco	A member of Agoniatitida belonging to the family Pharciceratidae. The type species is E. formosum; genus also includes "Pharciceras" evolvens Bockwinkel, Becker & Ebbighausen (2009).
Extropharciceras metallicum [20]	Sp. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany	A member of Agoniatitida belonging to the family Pharciceratidae.
Galfettites orientalis [7]	Sp. nov	Valid	Smyshlyaeva & Zakharov	Early Triassic (Olenekian)		Russia	A member of the family Galfettitidae.
Glyptophiceras mirum [7]	Sp. nov	Valid	Smyshlyaeva & Zakharov	Early Triassic (Olenekian)		Russia	A member of the family Xenoceltitidae.
Gonioclymenia junggarensis [21]	Sp. nov	In press	Zong, Becker & Ma	Devonian (Famennian)	Hongguleleng Formation	China
Hadrothisbites hanwangensis [22]	Sp. nov	In press	Mietto et al.	Late Triassic (Carnian)	Ma'antang Formation	China
Holcodiscus pseudocaillaudi [16]	Sp. nov	Valid	Vermeulen et al.	Early Cretaceous (Barremian)		France	A member of the family Holcodiscidae.
Hulenites kitamurai [23]	Sp. nov	In press	Matsukawa	Early Cretaceous (Aptian)	Todai Formation	Japan
Inaptychoceras [23]	Gen. et sp. nov	In press	Matsukawa	Early Cretaceous (Aptian)	Todai Formation	Japan	Genus includes new species I. koikei.
Kislovodskoceras [24]	Gen. et sp. nov	Valid	Polkovoy	Early Cretaceous (Aptian)		Russia	A member of the family Desmoceratidae. The type species is K. kislovodskense.
Kurnubiella fallax [3]	Sp. nov	Valid	Énay & Mangold	Middle Jurassic (Callovian)	Upper Dhruma Formation	Saudi Arabia	A member of the family Pachyceratidae.
Laevisimoceras [11]	Gen. et sp. nov	Valid	Nannarone & Bilotta	Late Jurassic (Tithonian)		Italy	A member of Perisphinctoidea belonging to the family Simoceratidae and the subfamily Parasimoceratinae. The type species is L. inornatum.
Linguatornoceras asbeckense [18]	Sp. nov	Valid	Korn	Devonian (Frasnian)		Germany	A member of the family Tornoceratidae.
Lunupharciceras kochi [20]	Sp. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany	A member of Agoniatitida belonging to the family Pharciceratidae.
Lutites [1]	Gen. et 5 sp. et comb. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran	A member of the family Dzhulfitidae. The type species is L. lyriformis; genus also includes new species L. alius, L. paucis, L. plicatus and L. profundus, as well as Alibashites stepanovi Korn & Ghaderi in Korn et al. (2015).
Lytogyroceras tuberculatum [11]	Sp. nov	Valid	Nannarone & Bilotta	Late Jurassic (Tithonian)		Italy	A member of Perisphinctoidea belonging to the family Simoceratidae and the subfamily Lytogyroceratinae.
Maenioceras ornatum [20]	Sp. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany	A member of Agoniatitida belonging to the family Maenioceratidae.
Nejdia duartei [25]	Sp. nov	Valid	Goy & Comas-Rengifo	Early Jurassic (Toarcian)			A member of the family Hildoceratidae.
Obtusicostites gigas [3]	Sp. nov	Valid	Énay & Mangold	Middle Jurassic (Callovian)	Upper Dhruma Formation	Saudi Arabia	A member of the family Perisphinctidae.
Ophimullericeras [26]	Gen. et sp. nov	Valid	Jenks et al.	Early Triassic	Dinwoody Formation	United States (  Nevada)	A member of Ceratitida belonging to the group Meekocerataceae and the family Mullericeratidae. The type species is O. paullae.
Pachyerymnoceras arabicum [3]	Sp. nov	Valid	Énay & Mangold	Middle Jurassic (Callovian)	Tuwaiq Mountain Limestone Formation	Saudi Arabia	A member of the family Pachyceratidae.
Pachyerymnoceras magnum [3]	Sp. nov	Valid	Énay & Mangold	Middle Jurassic (Callovian)	Tuwaiq Mountain Limestone Formation	Saudi Arabia	A member of the family Pachyceratidae.
Palaeophyllites mishkini [7]	Sp. nov	Valid	Smyshlyaeva & Zakharov	Early Triassic (Olenekian)		Russia	A member of the family Palaeophyllitidae.
Paracadoceras vasily [27]	Sp. nov	Valid	Gulyaev in Gulyaev & Ippolitov	Middle Jurassic (Callovian)		Ukraine
Paracochloceras nunminensis [5]	Sp. nov	Valid	Taylor, Guex & Lucas	Late Triassic (Rhaetian)	Gabbs Formation	United States (  Nevada)
Parahoplites inaensis [23]	Sp. nov	In press	Matsukawa	Early Cretaceous (Aptian)	Todai Formation	Japan
Parasimoceras [11]	Gen. et 2 sp. nov	Valid	Nannarone & Bilotta	Late Jurassic (Tithonian)		Italy	A member of Perisphinctoidea belonging to the family Simoceratidae and the subfamily Parasimoceratinae. The type species is P. venturii; genus also includes P. pseudostenonis.
Paratirolites aduncus [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran
Paratirolites baghukensis [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran
Paratirolites lanceolobatus [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran
Paratirolites robustus [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran
Paratirolites rubens [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran
Peripleurites gabbensis [5]	Sp. nov	Valid	Taylor, Guex & Lucas	Late Triassic (Rhaetian)	Gabbs Formation	United States (  Nevada)	A member of Choristocerataceae belonging to the family Rhabdoceratidae.
Pharciceras beyrichi [20]	Sp. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany	A member of Agoniatitida belonging to the family Pharciceratidae.
Pharciceras ferrum [20]	Sp. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany	A member of Agoniatitida belonging to the family Pharciceratidae.
Pharciceras kruegeri [20]	Sp. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany	A member of Agoniatitida belonging to the family Pharciceratidae.
Placites heggi [5]	Sp. nov	Valid	Taylor, Guex & Lucas	Late Triassic (Rhaetian)	Gabbs Formation	United States (  Nevada)	A member of the family Gymnitidae.
Planisimoceras [11]	Gen. et sp. nov	Valid	Nannarone & Bilotta	Late Jurassic (Tithonian)		Italy	A member of Perisphinctoidea belonging to the family Simoceratidae and the subfamily Parasimoceratinae. The type species is P. costotuberculatum.
Pluripharciceras ahlburgi [20]	Sp. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany	A member of Agoniatitida belonging to the family Pharciceratidae.
Pronjaites yolkinensis [28]	Sp. nov	Valid	Mitta	Early Cretaceous		Russia
Pseudogalfettites [7]	Gen. et sp. nov	Valid	Smyshlyaeva & Zakharov	Early Triassic (Olenekian)		Russia	A member of the family Galfettitidae. Genus includes new species P. sakhnoi.
Psiloceras pseudocostosum [10]	Sp. nov	Valid	Kment	Early Jurassic (Hettangian)
Retrotornoceras juxi [8]	Sp. nov	Valid	Söte et al.	Devonian (Frasnian)	Sand Formation	Germany	A member of the family Tornoceratidae.
Rhacophyllites mulleri [5]	Sp. nov	Valid	Taylor, Guex & Lucas	Late Triassic (Rhaetian)	Gabbs Formation	United States (  Nevada)
Rhacophyllites volcanoensis [5]	Sp. nov	Valid	Taylor, Guex & Lucas	Late Triassic (Rhaetian)	Gabbs Formation	United States (  Nevada)
Rollierites biplicatum [29]	Sp. nov	Valid	Jain & Mazur	Middle Jurassic (Callovian)		Poland	A member of the family Pachyceratidae.
Sandbergeroceras archiaci [20]	Sp. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany	A member of Agoniatitida belonging to the family Triainoceratidae.
Saudicostites [3]	Gen. et sp. nov	Valid	Énay & Mangold	Middle Jurassic (Bathonian)	Dhruma Formation	Saudi Arabia	A member of Perisphinctoidea of uncertain phylogenetic placement. The type species is S. arabicus.
Shevyrevites corrugatus [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran	A member of the family Xenodiscidae.
Sigaloceras fundator [27]	Sp. nov	Valid	Gulyaev in Gulyaev & Ippolitov	Middle Jurassic (Callovian)		Ukraine
Sigaloceras kiselevi [27]	Sp. nov	Valid	Gulyaev in Gulyaev & Ippolitov	Middle Jurassic (Callovian)		Ukraine
Simocosticeras [11]	Gen. et sp. nov	Valid	Nannarone & Bilotta	Late Jurassic (Tithonian)		Italy	A member of Perisphinctoidea belonging to the family Simoceratidae and the subfamily Simoceratinae. The type species is S. biornatum.
Sinotropites [22]	Gen. et sp. nov	In press	Mietto et al.	Late Triassic (Carnian)	Ma'antang Formation	China	Genus includes new species S. sichuanensis.
Sonninia (Euhoploceras) crassicostae [3]	Sp. nov	Valid	Énay & Mangold	Middle Jurassic (Bajocian)	Lower Dhruma Formation	Saudi Arabia	A member of the family Sonniniidae.
Sonninia (Euhoploceras) turbator [3]	Sp. nov	Valid	Énay & Mangold	Middle Jurassic (Bajocian)	Lower Dhruma Formation	Saudi Arabia	A member of the family Sonniniidae.
Sonoraceras [30]	Gen. et sp. nov	In press	Samaniego-Pesqueira, Moreno-Bedmar & Álvarez-Sánchez	Early Cretaceous (Aptian)		Mexico	Genus includes new species S. tepachensis.
Stenopharciceras lotzi [20]	Sp. nov	Valid	Korn & Bockwinkel	Devonian (Givetian)	Roteisenstein Formation	Germany	A member of Agoniatitida belonging to the family Pharciceratidae.
Stoliczkaia (Lamnayella) duboisi [31]	Sp. nov	Valid	Kennedy & Latil	Late Cretaceous (Cenomanian)		France	A member of the family Lyelliceratidae.
Stoyanowites parallelus [1]	Sp. nov	Valid	Korn & Hairapetian in Korn et al.	Permian (Changhsingian)	Hambast Formation	Iran	A member of the family Dzhulfitidae.
Strenoceras djangurense [32]	Sp. nov	Valid	Mitta	Middle Jurassic (Bajocian)		Russia
Sulcicostites [11]	Gen. et sp. nov	Valid	Nannarone & Bilotta	Late Jurassic (Tithonian)		Italy	A member of Perisphinctoidea belonging to the family Simoceratidae and the subfamily Simoceratinae. The type species is S. costatus.
Timorites dendroides [33]	Sp. nov	Valid	Korn & Ghaderi in Tabrizi et al.	Permian (Wuchiapingian)	Julfa Formation	Iran	A member of the family Cyclolobidae.
Tornoceras aequilobum [8]	Sp. nov	Valid	Söte et al.	Devonian (Frasnian)	Sand Formation	Germany	A member of the family Tornoceratidae.
Tornoceras fundibulum [18]	Sp. nov	Valid	Korn	Devonian (Famennian)			A member of the family Tornoceratidae.
Tornoceras occasus [34]	Sp. nov	Valid	Korn	Late Devonian		Morocco	A member of the family Tornoceratidae.
Tornoceras ortus [34]	Sp. nov	Valid	Korn	Late Devonian		Morocco	A member of the family Tornoceratidae.
Tornoceras vretterense [18]	Sp. nov	Valid	Korn	Devonian (Givetian)			A member of the family Tornoceratidae.
Tropaeum evolutum [35]	Sp. nov	In press	Lehmann & Bayliss	Early Cretaceous (Aptian)	Hythe Formation	United Kingdom
Tropidoceras komarovi [36]	Sp. nov	Valid	Zaitsev	Early Jurassic		Crimean Peninsula
Vicininodiceras dalriatense [12]	Sp. nov	Valid	Simms & Edmunds	Early Jurassic		United Kingdom
Volanoceras cuneospinatum [11]	Sp. nov	Valid	Nannarone & Bilotta	Late Jurassic (Tithonian)		Italy	A member of Perisphinctoidea belonging to the family Simoceratidae and the subfamily Volanoceratinae.
Waehneroceras morawetzi [10]	Sp. nov	Valid	Kment	Early Jurassic (Hettangian)
Wordieoceras mullenae [26]	Sp. nov	Valid	Jenks et al.	Early Triassic	Dinwoody Formation	United States (  Nevada)	A member of Ceratitida belonging to the group Meekocerataceae and the family Ophiceratidae.

Research

• A modern review of the palaeobiology of heteromorph ammonoids is published by Hoffmann et al. (2021), including details of their anatomy, buoyancy, locomotion, predators, diet, palaeoecology, and extinction. ^[37]
• A study on the impact of the Permian–Triassic extinction event on the morphological diversity of ammonites is published by Dai, Korn & Song (2021). ^[38]
• A study on the morphology and ontogeny of whorl profiles of the late Anisian ceratitid ammonites is published by Bischof et al. (2021). ^[39]
• An exceptionally preserved specimen of Sigaloceras enodatum, providing information on the anatomy of ammonite muscles, is described from the Middle Jurassic (Callovian) Kellaways Sand Member of Colne Gravel (Gloucestershire, United Kingdom) by Cherns et al. (2021), who evaluate the implications of this specimen for the knowledge of the swimming mechanism of ammonites. ^[40]
• Soft parts of a perisphinctid belonging to the genus Subplanites , separated from the conch either taphonomically or during a failed predation, are described from the Tithonian conservation deposits of Wintershof (southern Germany) by Klug et al. (2021). ^[41]
• The first physical compression experiments on model ammonite septa are performed by Johnson et al. (2021), who attempt to determine whether the increasingly complex fractal margins of ammonite septa might have evolved to increase resistance to shell-crushing predators. ^[42]
• A study aiming to determine the function of complex septa in the ammonite shell, providing evidence of a relationship between septal complexity and capacity for liquid retention within chambers of the shell, likely improving buoyancy regulation, is published by Peterman et al. (2021). ^[43]
• Two specimens of Peltoceras athleta having both female and male features are described from Callovian limestone beds in Méron near Montreuil-Bellay (France) by Frau & Boursicot (2021), who interpret these specimens as cases of intersexuality in ammonites. ^[44]
• Soft tissue remains preserved within the conch of a specimen of Proleymeriella schrammeni from the Albian of Germany are described by Hoffmann et al. (2021). ^[45]
• A study on the arrangement in space and probable nature of hook-like structures found with specimens of Rhaeboceras halli is published by Smith et al. (2021), who interpret these structures as representing part of the brachial crown armature, and propose a hypothetical reconstruction of an ammonite brachial crown. ^[46]
• A study on the systematics and phylogeny of the genus Aegocrioceras is published by Weinkauf, Hoffmann & Wiedenroth (2021). ^[47]
• A study on the hydrostatic properties of Baculites compressus, and on their implications for the knowledge of the swimming capabilities and ecology of this ammonite and orthoconic cephalopods in general, is published by Peterman & Ritterbush (2021). ^[48]
• Revision of the fossil material of Parapuzosia seppenradensis, including historic specimens from Europe and the United States and new material from England and Mexico, and a study on the ontogeny, distribution and evolution of this ammonite, is published by Ifrim et al. (2021). ^[49]
• A study on the habitat depth preferences of Hoploscaphites constrictus from the European Boreal Chalk Sea, as indicated by stable isotope thermometry of aptychi and by data from predation marks on the scaphitid moulds, is published by Machalski et al. (2021). ^[50]
• A study on the relationship between sutural complexity and body size in Cretaceous ammonites is published by Pérez-Claros (2021). ^[51]

Other cephalopods

New taxa

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Acrocoelites ippolitae [52]	Sp. nov	Valid	Weis in Weis et al.	Middle Jurassic (Aalenian)		Germany	A belemnite.
Anglonautilus hewaidyi [53]	Sp. nov	In press	Moneer, Bazeen & Kassab	Late Cretaceous (Maastrichtian)		Egypt	A nautiloid cephalopod.
Angulithes monqarensis [53]	Sp. nov	In press	Moneer, Bazeen & Kassab	Late Cretaceous (Maastrichtian)		Egypt	A nautiloid cephalopod.
Arionoceras tokushimaense [54]	Sp. nov	Valid	Niko	Silurian (Ludlow)	Suberidani Group	Japan
Bactroceras fluvii [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Dapingian)	Valhallfonna Formation	Norway
Boreopeltis ifrimae [56]	Sp. nov	In press	Fuchs & Stinnesbeck	Late Cretaceous (Turonian)		Mexico
Buttsoceras buldrebreenense [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A member of the family Troedssonellidae.
Cycloplectoceras hinlopense [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A member of the family Tarphyceratidae.
Cyclostomiceras profilstrandense [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A member of the family Cyclostomiceratidae.
Deltoceras beluga [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A member of the family Cyclostomiceratidae.
Eosomichelinoceras borealis [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A member of the family Baltoceratidae.
Eosomichelinoceras submedius [57]	Sp. nov	Valid	Evans et al.	Ordovician (Darriwilian)	Pelmis Formation	Iran	A member of the family Baltoceratidae.
Ethanoceras [55]	Gen. et sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A relative of Rioceras . The type species is E. solitudines.
Gzheloceras aisenvergi [58]	Sp. nov	Valid	Dernov	Carboniferous (Serpukhovian)	Samara Formation	Ukraine	A member of the family Tainoceratidae.
Hemichoanella occulta [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway
Hinlopoceras [55]	Gen. et 2 sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A relative of Rioceras. The type species is H. tempestatis; genus also includes H. venti.
Jovellania praetermissa [59]	Sp. nov	Valid	Brauckmann & Koch	Devonian (Givetian)	Massenkalk Formation	Germany
Knightoceras extorris [58]	Sp. nov	Valid	Dernov	Carboniferous (Pennsylvanian)		Ukraine	A member of the family Koninckioceratidae.
Lawrenceoceras ebenus [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway
Lawrenceoceras larus [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway
Litoceras profilbekkenense [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway
Mojsvaroceras gianii [60]	Sp. nov	Valid	Pieroni & Prinoth	Middle Triassic (Anisian)		Italy	A nautiloid.
Nyfrieslandoceras [55]	Gen. et sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A member of Oncocerida belonging to the family Phthanoncoceratidae. The type species is N. bassleroceroides.
Olenidslettoceras [55]	Gen. et sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A member of Oncocerida belonging to the family Phthanoncoceratidae. The type species is O. farmi.
Paracenoceras waageni [61]	Sp. nov	Valid	Halder	Middle Jurassic (Callovian)	Chari Formation	India	A member of the family Paracenoceratidae.
Planetoceras yefimenkoi [58]	Sp. nov	Valid	Dernov	Carboniferous (Bashkirian)	Mospinka Formation	Ukraine	A member of the family Koninckioceratidae.
Proterocameroceras valhallfonnense [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway
Protocycloceras minor [55]	Sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A member of the family Troedssonellidae.
Rhynchorthoceras yizanense [62]	Sp. nov	Valid	Fang in Fang et al.	Ordovician		China	A member of Lituitida.
Sinoceras complexum [62]	Sp. nov	Valid	Fang in Fang et al.	Ordovician		China	A member of Lituitida.
Sorosoceras [57]	Gen. et sp. nov	Valid	Evans et al.	Ordovician (Darriwilian)	Pelmis Formation	Iran	A member of the family Geisonoceratidae. The type species is S. castellum.
Svalbardoceras [55]	Gen. et 2 sp. nov	Valid	Kröger & Pohle	Ordovician (Floian)	Valhallfonna Formation	Norway	A relative of Rioceras. The type species is S. sterna; genus also includes S. skua.
Tyrioceras longicameratum [62]	Sp. nov	Valid	Fang in Fang et al.	Ordovician		China	A member of Lituitida.
Xiaohenautilus mulleni [26]	Sp. nov	Valid	Jenks et al.	Early Triassic	Dinwoody Formation	United States (  Nevada)	A member of Nautilida belonging to the group Trigonoceratoidea and the family Grypoceratidae.

Research

• New fossil material with shell features that characterize early cephalopods is described from the Cambrian (Terreneuvian) Bonavista Formation (Canada) by Hildenbrand et al. (2021), who interpret this finding as possibly representing the earliest cephalopods known to date, potentially pushing the origin of cephalopods back in time by about 30 million years, to the time before the first occurrence of euarthropods. ^[63]
• Two specimens of Syrionautilus libanoticus preserving soft parts, including a specimen showing an imprint of the conch, are described from the Cenomanian of Hadjoula (Lebanon) by Klug et al. (2021). ^[64]
• A study on the diversity patterns and spatial structure of belemnite assemblages in Western Tethys Ocean during the Early Jurassic is published by Neige, Weis & Fara (2021). ^[65]
• A study on morphological changes of belemnites across the Pliensbachian-Toarcian boundary event, based on data from the Peniche GSSP section (Portugal), is published by Nätscher et al. (2021). ^[66]
• A study on chemistry, organization and genesis of circular structures (superficially resembling chromatophores) preserved in coleoid cephalopod specimens from the Jurassic of Germany and the Cretaceous of Lebanon is published by Klug et al. (2021). ^[67]
• A well-preserved soft-body imprint of a fossil squid is described from the lower Oligocene of the Krasnodar region (Russia) by Mironenko et al. (2021), who interpret this finding as the first unquestionable representative of Teuthida in the fossil record known to date, and report preservation of fish remains in the stomach contents of this squid, indicative of its piscivorous diet. ^[68]
• A specimen of Jeletzkyteuthis coriacea holding a specimen of Parabelopeltis flexuosa in its arms, with the apex very close to its jaws, is described from the Toarcian Posidonia Shale (Germany) by Klug et al. (2021), who interpret this finding as a case of frozen predatory behaviour of two different octobrachian species. ^[69]
• Redescription of the gladius of the holotype specimen of Necroteuthis hungarica is published by Košťák et al. (2021), who reinterpret this species as a member of the family Vampyroteuthidae linking Mesozoic loligosepiids with extant Vampyroteuthis . ^[70]
• Klompmaker & Landman (2021) describe the oldest drill holes produced by octopodoids in lucinid bivalve specimens from the Campanian of South Dakota, indicating that the drilling habit evolved early in the evolutionary history of Octopodoidea. ^[71]

Gastropods

New taxa

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Acirsa ambrosii [72]	Sp. nov	Valid	Brunetti & Cresti	Pliocene		Italy	A species of Acirsa .
Acirsa (Notacirsa) texana [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Acirsa.
Acteon pseudotypica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Acteon .
Acutitomaria [74]	Gen. et sp. nov	Valid	Karapunar & Nützel	Late Triassic	San Cassiano Formation	Italy	A member of Pleurotomariida. Genus includes new species A. kustatscherae.
Alatostrombus [75]	Gen. et sp. et comb. nov	Valid	Raven	Miocene		Indonesia   Malaysia	A member of the family Strombidae. Genus includes new species A. acutalatus, as well as "Strombus" sedanensis Martin (1899).
Alvania absuturalis [76]	Sp. nov	Valid	Chirli & Forli	Pliocene		Italy	A species of Alvania .
Alvania ameliae [76]	Sp. nov	Valid	Chirli & Forli	Pleistocene		Italy	A species of Alvania.
Alvania benestarensis [76]	Sp. nov	Valid	Chirli & Forli	Miocene		Italy	A species of Alvania.
Alvania cerreti [77]	Sp. nov	Valid	Gardella et al.	Pliocene		Italy	A species of Alvania.
Alvania pluricosticillata [76]	Sp. nov	Disputed	Chirli & Forli	Plio-Pleistocene		Italy	Originally described as a species of Alvania. Argued to be a junior synonym of the extant taxon Crisilla gagliniae by Amati & Oliverio (2024). [78]
Amaea (Confusiscala) paleocaenica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Ammonicera danieli [79]	Sp. nov	Valid	Chernyshev & Goedert	Late Eocene/early Oligocene	Gries Ranch Formation	United States (  Washington)	A species of Ammonicera .
Ammonicera rolani [79]	Sp. nov	Valid	Chernyshev & Goedert	Late Eocene/early Oligocene	Gries Ranch Formation	United States (  Washington)	A species of Ammonicera.
Ampezzogyra angulata [80]	Sp. nov	Valid	Nützel & Hausmann in Hausmann et al.	Late Triassic (Carnian)	San Cassiano Formation	Italy	A member of the family Stuoraxidae.
Amphidromus ubaldii [81]	Sp. nov	Valid	Dharma	Late Pliocene		Indonesia	A species of Amphidromus .
Amplitomaria [74]	Gen. et comb. nov	Valid	Karapunar & Nützel				A member of Pleurotomariida. The type species is "Pleurotomaria" spuria Münster (1841).
Anacithara akisi [82]	Sp. nov	Valid	Kolokotronis	Pliocene		Cyprus	A species of Anacithara .
Anceps siminescui [83]	Nom. nov	Valid	Harzhauser	Middle-late Miocene		Moldova	A Trochidae member; a replacement name for Trochus semistriatus Siminescu & Barbu (1940).
Angulatella [80]	Gen. et sp. nov	Valid	Nützel & Hausmann in Hausmann et al.	Late Triassic (Carnian)	San Cassiano Formation	Italy	A member of the family Prostyliferidae. The type species is A. bizzarinii.
Antithala [84]	Gen. et comb. et 2 sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Bosnia and Herzegovina   Hungary   Poland   Romania   Ukraine	A member of the family Costellariidae. The type species is "Mitra" sturi Hoernes & Auinger (1880); genus also includes "Mitra" neugeboreni Hoernes & Auinger (1880), as well as new species A. claviformis and A. filipescui.
Apiocypraea cerretensis [85]	Sp. nov	Valid	Fehse et al.	Pliocene (Zanclean)		Italy	A member of the family Eocypraeidae.
Aplus abessensis [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Aplus .
Aplus grandiculus [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Aplus.
Aplus littoralis [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Aplus.
Aplus pseudoaquitanensis [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Aplus.
Aquilofusus? antiqua [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Ascheria canni [87]	Sp. nov	Valid	Kaim et al.	Late Cretaceous (Cenomanian to Turonian)		Cyprus	A member of the family Hokkaidoconchidae.
Asiaharpa [88]	Gen. et sp. nov	Valid	Raven	Miocene		Malaysia	A member of the family Harpidae. Genus includes new species A. sarawakiana.
Attenuata? danica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Possibly a species of Attenuata .
Auingeria [89]	Gen. et comb. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria   Czech Republic   Germany   Hungary	A member of the family Columbellidae. The type species is "Columbella" bellardii Hörnes (1852); genus also includes "Columbella (Anachis)" austriaca Hoernes & Auinger (1880) and "Pyrene (Anachis) bellardii" grussbachensis Csepreghy-Meznerics (1969; raised to the rank of a separate species Auingeria grussbachensis).
Axonella [90]	Gen. et comb. et sp. nov	Valid	Pacaud, Lhomme & Renaud	Eocene (Ypresian)		France   Spain	A member of the family Hemisinidae. The type species is "Cerithium" palense Rouault (1850); genus also includes "Potamides" granosus Doncieux (1908), as well as new species A. falsiacum.
Babylonia chattica [91]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Babylonia .
Babylonia edigittenbergeri [92]	Sp. nov	Valid	Raven	Miocene	Miri Formation	Malaysia	A species of Babylonia.
Babylonia sarawakiana [92]	Sp. nov	Valid	Raven	Miocene	Miri Formation	Malaysia	A species of Babylonia.
Bandellina compacta [80]	Sp. nov	Valid	Nützel & Hausmann in Hausmann et al.	Late Triassic (Carnian)	San Cassiano Formation	Italy	A member of the family Cornirostridae.
Barycypraea abbasi [93]	Sp. nov	Valid	Dovesi & Parsons	Miocene (Serravallian)	Nyalindung Formation	Indonesia	A species of Barycypraea .
Barycypraea alessandrodovesi [93]	Sp. nov	Valid	Dovesi & Parsons	Miocene (Serravallian)	Nyalindung Formation	Indonesia	A species of Barycypraea.
Bela pediensis [94]	Sp. nov	Valid	Kolokotronis	Pliocene		Cyprus	A species of Bela .
Bellacolumbella [89]	Gen. et comb. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria   Czech Republic   Hungary   Romania	A member of the family Columbellidae. The type species is "Columbella (Nitidella)" karreri Hoernes & Auinger (1880); genus also includes "Columbella (Nitidella)" embryonalis Boettger (1902) and "Columbella (Nitidella)" katharinae Hoernes & Auinger (1880).
Bellardithala [84]	Nom. et 4 sp. nov	Valid	Harzhauser & Landau	Miocene and Pliocene	Baden Formation Dej Formation	Austria   Czech Republic   Italy   Poland   Romania   Ukraine   Hungary?	A member of the family Costellariidae; a replacement name for Micromitra Bellardi (1888). The type species is "Voluta" obsoleta Brocchi (1814); genus also includes new species B. kovaci, B. baluki, B. fedosovi and B. dacica.
Bieleraxis [73]	Gen. et 2 sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species B. discoidea and B. altis.
Bithynia disregularis [95]	Sp. nov	In press	Li et al.	Oligocene	Yehucheng Formation	China	A species of Bithynia .
Bithynia obliquus [95]	Sp. nov	In press	Li et al.	Oligocene	Yehucheng Formation	China	A species of Bithynia.
Bithynia parainclinimarga [95]	Sp. nov	In press	Li et al.	Oligocene	Yehucheng Formation	China	A species of Bithynia.
Bithynia paramonolithic [95]	Sp. nov	In press	Li et al.	Oligocene	Yehucheng Formation	China	A species of Bithynia.
Bittium prekoeneni [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Bittium .
Bulimulus frenguellii [96]	Sp. nov	Valid	Cabrera et al.	Late Cretaceous	Queguay Formation	Uruguay	A species of Bulimulus .
Burminella [97]	Gen. et sp. nov	In press	Balashov, Perkovsky & Vasilenko	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A land snail possessing morphological traits intermediate between members of the family Pupinidae and other members of Cyclophoroidea. Genus includes new species B. artiukhini.
Bursa transeuntis [98]	Sp. nov	Valid	Forli & Smriglio	Miocene and Pliocene		Hungary   Italy   Poland	A species of Bursa .
Caecum texanum [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Caecum .
Califrapana [99]	Gen. et comb. nov	Valid	Powell & Houart	Late Oligocene to early Miocene	Vaqueros Formation	Mexico   United States (  California)	A member of the family Muricidae. The type species is "Purpura" vaquerosensis Arnold (1907).
Calyptraphorus velusus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Camponaxis bandeli [100]	Sp. nov	Valid	Pieroni, Monari & Todd	Late Triassic (Carnian)	San Cassiano Formation	Italy	A Tofanellidae member
Campylacrum texanum [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Canariella (Majorata) gerti [101]	Sp. nov	Valid	Groh	Quaternary		Canary Islands	A species of Canariella .
Cancellotomaria [74]	Gen. et comb. nov	Valid	Karapunar & Nützel				A member of Pleurotomariida. The type species is "Pleurotomaria" subcancellata d'Orbigny (1850).
Cancilla nanostriatula [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria   Bulgaria   Hungary	A species of Cancilla .
Cancilla wagreichi [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A species of Cancilla.
Capulus gelus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Capulus .
Cassis kalmani [103]	Sp. nov	Valid	Vicián & Kovács	Eocene (Lutetian)	Csernye Formation	Hungary	A species of Cassis .
Cassis rasae [104]	Sp. nov	Valid	Petuch & Berschauer	Pleistocene		United States (  Florida)	A species of Cassis.
Cassis viliusi [104]	Sp. nov	Valid	Petuch & Berschauer	Pleistocene		United States (  Florida)	A species of Cassis.
Cenorhytis [73]	Gen. et sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species C. groesbecki.
Ceratopea? moridunensis [105]	Sp. nov	Valid	Ebbestad & Cope	Ordovician (Floian)		United Kingdom	A member of the family Raphistomatidae.
Cerithiella acuta [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Cerithiella .
Cerithiscala parvibrazosa [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Cerithiscala tehuacana [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Chemnitzia silvai [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Chemnitzia .
Chevallieria texanopsis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Chicomurex parvus [107]	Sp. nov	Valid	Merle, Landau & Breitenberger	Miocene		Indonesia	A species of Chicomurex .
Chicoreus javanus [107]	Sp. nov	Valid	Merle, Landau & Breitenberger	Miocene		Indonesia	A species of Chicoreus .
Chicoreus martini [107]	Sp. nov	Valid	Merle, Landau & Breitenberger	Miocene		Indonesia	A species of Chicoreus.
Chicoreus solidus [107]	Sp. nov	Valid	Merle, Landau & Breitenberger	Miocene		Indonesia	A species of Chicoreus.
Clava (Semivertagus) scriba [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Clavatula hirmetzli [108]	Sp. nov	Valid	Kovács & Vicián	Middle Miocene	Lajta Limestone Formation	Hungary	A species of Clavatula .
Clavatula santhai [108]	Sp. nov	Valid	Kovács & Vicián	Middle Miocene	Lajta Limestone Formation	Hungary	A species of Clavatula.
Clavatula szekelyhidiae [108]	Sp. nov	Valid	Kovács & Vicián	Middle Miocene	Lajta Limestone Formation	Hungary	A species of Clavatula.
Cochlespira (Tahusyrinx) laevis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Cochlespira .
Conilithes herodus [109]	Sp. nov	Valid	Psarras, Koskeridou & Merle	Miocene (Tortonian)		Greece	A species of Conilithes .
Conradconfusus nodulinus [110]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States (  Texas)
Conradconfusus texanus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Conus (Kalloconus) asterousiaensis [109]	Sp. nov	Valid	Psarras, Koskeridou & Merle	Miocene (Tortonian)		Greece   Italy	A species of Conus .
Conus (Kalloconus) helladicus [109]	Sp. nov	Valid	Psarras, Koskeridou & Merle	Miocene (Tortonian)		Greece	A species of Conus.
Cordieria biouesensis [111]	Sp. nov	Valid	Pacaud	Paleocene (Thanetian)		France	A species of Cordieria .
Coronia argilla [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Costoanachis venzoi [89]	Nom. nov	Valid	Harzhauser & Landau	Miocene		Italy	A species of Costoanachis ; a replacement name for Anachis (Costoanachis) subcorrugata Venzo & Pelosio (1963).
Crassaseila [73]	Gen. et 2 sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species C. ripleyana and C. paleocenica.
Crassispira plioibericostricta [112]	Sp. nov	Valid	Brunetti & Forli	Pliocene (Zanclean)		Spain	A species of Crassispira .
Crassispira pseudoglabra [112]	Sp. nov	Valid	Brunetti & Forli	Pliocene (Piacenzian)		Italy	A species of Crassispira.
Crenaturricula minuta [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Creonella hebetertia [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Cretatortulosa cretakachinensis [113]	Sp. nov	In press	Yu, Salvador & Jarzembowski	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar
Cretatortulosa gignens [114] [115] [116]	Sp. nov	In press	Jochum, Yu & Neubauer	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A member of the family Pupinidae.
Cryptochorda paleocaenica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Cyathopoma pingyiensis [117]	Sp. nov	In press	Yu et al.	Cretaceous–Paleogene transition	Pingyi Basin	China	A species of Cyathopoma .
Cylichna (Cylichnopsis) elliptica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Cylichna .
Cymatiella dulaii [103]	Sp. nov	Valid	Vicián & Kovács	Eocene (Lutetian)	Csernye Formation	Hungary	A species of Cymatiella .
Cymatiella tzankovi [103]	Nom. nov	Valid	Vicián & Kovács	Paleocene		Bulgaria	A species of Cymatiella; a replacement name for Eutritonium (Sassia) rutoti Tzankov (1940).
Cymatium danianum [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Cymatium .
Cyphoma guraboensis [118]	Sp. nov	Valid	Groves & Landau	Early Pliocene	Gurabo Formation	Dominican Republic	A species of Cyphoma .
Cypraeorbis alisonkayae [118]	Sp. nov	Valid	Groves & Landau	Miocene		Dominican Republic	A species of Cypraeorbis .
Cyprioconcha [87]	Gen. et sp. nov	Valid	Kaim et al.	Late Cretaceous (Cenomanian to Turonian)		Cyprus	A member of the family Hokkaidoconchidae. The type species is C. robertsoni.
Defensina [89]	Gen. et comb. nov	Valid	Harzhauser & Landau	Miocene		Bosnia and Herzegovina   Bulgaria   Romania	A member of the family Columbellidae. The type species is "Columbella (Mitrella)" bucciniformis Hoernes & Auinger (1880).
Dermomurex wanneri [107]	Nom. nov	Valid	Merle, Landau & Breitenberger	Miocene		Indonesia	A species of Dermomurex ; a replacement name for Murex acuticostatus Wanner & Hahn (1935).
Desbruyeresia kambiaensis [87]	Sp. nov	Valid	Kaim et al.	Late Cretaceous (Cenomanian to Turonian)		Cyprus	A species of Desbruyeresia .
Desbruyeresia kinousaensis [87]	Sp. nov	Valid	Kaim et al.	Late Cretaceous (Cenomanian to Turonian)		Cyprus	A species of Desbruyeresia.
Desbruyeresia memiensis [87]	Sp. nov	Valid	Kaim et al.	Late Cretaceous (Cenomanian to Turonian)		Cyprus	A species of Desbruyeresia.
Discotectonica paracutissima [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Discotectonica .
Doliella parnitens [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Doliella .
Domiporta amoena [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Austria   Bulgaria   Romania	A species of Domiporta .
Domiporta pulchra [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A species of Domiporta.
Domiporta turpis [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Domiporta.
Ederazyga [100]	Gen. et sp. et comb. nov	Valid	Pieroni, Monari & Todd	Late Triassic (Carnian to Rhaetian)	Nayband Formation San Cassiano Formation Zu Limestone	Iran   Italy   Slovenia	A possible Zygopleuridae member. The type species is E. fanchini; genus also includes "Cerithium"? lateplicatum Klipstein (1843).
Ellobium mizutanii [119]	Sp. nov	Valid	Kawase & Ichihara	Early Miocene	Akeyo Formation	Japan	A species of Ellobium .
Entemnotrochus kathiawarensis [120]	Sp. nov	Valid	Bose, Das & Mondal	Miocene (Burdigalian)		India	A species of Entemnotrochus .
Eoacteon paracutissima [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Eoancilla lapicidina [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Eocithara (?) laurencei [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Eopleurotoma atacica [111]	Nom. nov	Valid	Pacaud	Eocene (Ypresian)		France	A species of Eopleurotoma ; a replacement name for Pleurotoma (Eopleurotoma) romani Doncieux (1908).
Eotrivia pacaudi [121]	Sp. nov	Valid	Fehse	Eocene		Italy
Eoturris fallsensis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Eoworthenia frydai [74]	Nom. nov	Valid	Karapunar & Nützel				A member of Pleurotomariida; a replacement name for Worthenia rarissima Barrande.
Episcomitra antibellardii [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A species of Episcomitra .
Episcomitra leopoldiana [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria   Czech Republic   Poland	A species of Episcomitra.
Episcomitra missile [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria   Hungary	A species of Episcomitra.
Episcomitra neubaueri [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A species of Episcomitra.
Episcomitra pontonxensis [91]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Episcomitra.
Episcomitra pseudoincognita [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania   Ukraine	A species of Episcomitra.
Episcomitra vermeuleni [122]	Sp. nov	Valid	Pacaud	Eocene (Priabonian)		Ukraine	A species of Episcomitra.
Eulimella ariejansseni [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Eulimella .
Euthema myanmarica [123]	Sp. nov	Valid	Balashov	Cretaceous	Hkamti amber	Myanmar	A species of Euthema .
Euthria mellianensis [86]	Sp. nov	Valid	Lozouet	Miocene		France	A species of Euthria .
Euthria tarusatensis [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Euthria.
Euthriofusus argillensis [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France
Falsifusus problematicus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Fedosovia [84]	Gen. et comb. nov	Valid	Harzhauser & Landau	Miocene		Czech Republic   Italy   Romania	A member of the family Costellariidae. The type species is "Mitra (Callithea)" fuchsi Hoernes & Auinger (1880).
Fraudiziba [102]	Gen. et nom. et sp. nov	Valid	Harzhauser & Landau	Miocene and Pliocene	Karaman Basin	Austria   Bosnia and Herzegovina   Czech Republic   Hungary   Italy   Poland   Romania   Slovakia   Turkey   Ukraine	A member of the family Mitridae. The type species is F. paratethyca (a replacement name for Mitra austriaca Csepreghy-Meznerics, 1950); genus also includes new species F. ottomanica.
Fulgurofusus spinosus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Fulgurofusus .
Fusulculus texanus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Fusulculus .
Galba prima [124]	Sp. nov	Valid	Yu, Neubauer & Jochum	Cretaceous	Burmese amber	Myanmar	A species of Galba .
Gemmula bearrizensis [111]	Nom. nov	Valid	Pacaud	Eocene (Priabonian)		France	A species of Gemmula ; a replacement name for Drillia pellati Boussac (1911).
Gemmula osca [111]	Sp. nov	Valid	Pacaud	Eocene (Bartonian)		Spain	A species of Gemmula.
Gentilifulgur [73]	Gen. et sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species G. praemortoni.
Gibbula lovellreevei [83]	Nom. nov	Valid	Harzhauser	Pliocene		United Kingdom	A Trochidae member; a replacement name for Trochus (Gibbula) reevei Harmer (1923).
Gibbula pizzolatoi [125]	Sp. nov	Valid	Spadini	Pliocene		Italy	A species of Gibbula .
Gibbula steiningeri [83]	Nom. nov	Valid	Harzhauser	Early Miocene		Austria	A Trochidae member; a replacement name for Trochus amedei bicincta Schaffer (1912).
Gibbula tavanii [83]	Nom. nov	Valid	Harzhauser	Miocene		Libya	A Trochidae member; a replacement name for Gibbula minima Tavani (1939).
Gibbuliculus [83]	Gen. et comb. et nom. nov	Valid	Harzhauser	Oligocene to Pleistocene		Europe	A Trochidae member; The type species is "Gibbula" brebioni Landau, Van Dingenen & Ceulemans (2017). Genus includes G. saccoi (a replacement name for Gibbula protumida Sacco, 1896).
"Gibbulinella" sandbergeri [126]	Nom. nov	Valid	Harzhauser & Neubauer	Eocene		Italy	A member of the family Streptaxidae; a replacement name for Pupa simplex Sandberger (1870).
Haedropleura dellabellai [72]	Sp. nov	Valid	Brunetti & Cresti	Pliocene		Italy	A species of Haedropleura .
Hammatospira cancellata [127]	Sp. nov	Valid	Mazaev	Early Carboniferous		Kazakhstan
Hespererato canae [118]	Sp. nov	Valid	Groves & Landau	Late Miocene and early Pliocene	Cercado Formation	Dominican Republic	A species of Hespererato .
Hespererato praeclusa [118]	Sp. nov	Valid	Groves & Landau	Early–middle Miocene	Baitoa Formation	Dominican Republic	A species of Hespererato.
Hexaplex nascium [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Hexaplex .
Hirsuticyclus canaliculatus [128]	Sp. nov	In press	Yu	Cretaceous	Burmese amber	Myanmar	A member of the family Cyclophoridae.
Hochheimia [126]	Nom. nov	Valid	Harzhauser & Neubauer	Oligocene		Germany	A member of the family Hygromiidae; a replacement name for Palaeotrichia Nordsieck (2014).
Hokkaidoconcha morisseaui [87]	Sp. nov	Valid	Kaim et al.	Late Cretaceous (Cenomanian to Turonian)		Cyprus	A member of the family Hokkaidoconchidae.
Holospira? fallsensis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Possibly a species of Holospira .
?Hydrocena praecursor [129]	Sp. nov	In press	Yu & Neubauer	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A member of the family Hydrocenidae.
Jponsia lacetania [130]	Sp. nov	Valid	Pacaud & Goret	Eocene (Ypresian)		Spain	A member of the family Pachychilidae.
Kapalmerella gelus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Keepingia elongata [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France
Laevispira [75]	Gen. et comb. et sp. nov	Valid	Raven	Miocene and Pliocene		Brunei   India   Indonesia	A member of the family Strombidae. Genus includes "Dolomena" bruneiensis Harzhauser, Raven & Landau (2018), "Strombus" glaber Martin (1879), "Strombus" karikalensis Cossmann (1903), "Strombus" triangulatus Martin (1879) and "Strombus" varinginensis Martin (1899), as well as new species L. seriaensis.
Laevitrivia [131]	Gen. et comb. et 5 sp. nov	Valid	Fehse & Vicián	Miocene and Pliocene		France   Italy	A member of the family Triviidae. The type species is "Cypraea" pisolina Lamarck, (1810); genus also includes new species L. annae, L. bertaccinii, L. pliopisolina, L. pseudocalva and L. ventricostata.
Latirus? asperpellis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Possibly a species of Latirus .
Laubella subsulcata [74]	Sp. nov	Valid	Karapunar & Nützel	Late Triassic	San Cassiano Formation	Italy	A member of Pleurotomariida.
Lineacingulum [74]	Gen. et comb. nov	Valid	Karapunar & Nützel				A member of Pleurotomariida. The type species is "Pleurotomaria" texturata Münster (1841).
Lineaetomaria [74]	Gen. et comb. nov	Valid	Karapunar & Nützel				A member of Pleurotomariida. The type species is "Pleurotomaria" decorata Münster (1841).
Liostomia wilvanderstoelae [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Liostomia .
Littorina elongata [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Littorina .
Littorina (Prosthenodon) incertus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Littorina.
Lupira danianum [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Lutema gracilis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Lyria elongata [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Lyria .
Lyria tehuacana [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Lyria.
Malea hyaducki [104]	Sp. nov	Valid	Petuch & Berschauer	Pliocene		United States (  Florida)	A species of Malea .
Martaia [89]	Gen. et comb. nov	Valid	Harzhauser & Landau	Miocene		Austria   Bulgaria   Czech Republic   Hungary   Romania   Ukraine	A member of the family Columbellidae. The type species is "Columbella (Anachis)" dujardini Hoernes & Auinger (1880); genus also includes "Columbella (Anachis)" zitteli Hoernes & Auinger (1880).
Mathilda (Echinimathilda) duogenta [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Mathilda .
Melongena pontonxensis [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Melongena .
Metula bulbiformis [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Metula .
Metula nana [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Metula.
Metula pseudomajor [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Metula.
Metula rivulisensis [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Metula.
Mimospira llangynogensis [105]	Sp. nov	Valid	Ebbestad & Cope	Ordovician (Floian)		United Kingdom	A member of the family Clisospiridae.
Mitrella dacica [89]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Hungary   Romania   Slovakia	A species of Mitrella .
Mitrella demaintenonae [89]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation Dej Formation	Austria   Romania	A species of Mitrella.
Mitrella elongatissima [89]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria   Bosnia and Herzegovina	A species of Mitrella.
Mitrella fortis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Mitrella.
Mitrella tarbelliana [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Mitrella.
Mitrella viennensis [89]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria   Bulgaria   Czech Republic   Kazakhstan   Poland   Romania	A species of Mitrella.
Moniquia astibiai [130]	Sp. nov	Valid	Pacaud & Goret	Eocene (Priabonian)		Spain	A member of the family Pachychilidae.
Monoplex s.l. szakonyii [103]	Sp. nov	Valid	Vicián & Kovács	Eocene (Lutetian)	Csernye Formation	Hungary	A member of the family Cymatiidae.
Mulderia mulderi [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A member of the family Pyramidellidae.
Multitrochia [73]	Gen. et sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species M. tehuacana.
Nannamoria alquezae [132]	Sp. nov	Valid	Hawke	Miocene		Australia	A species of Nannamoria .
Nannamoria cadella [132]	Sp. nov	Valid	Hawke	Miocene	Cadel Formation	Australia	A species of Nannamoria.
Nannamoria costatum [132]	Sp. nov	Valid	Hawke	Pliocene	Cameron Inlet Formation	Australia	A species of Nannamoria.
Nannamoria flindersi [132]	Sp. nov	Valid	Hawke	Pliocene	Cameron Inlet Formation	Australia	A species of Nannamoria.
Nannamoria gnotuki [132]	Sp. nov	Valid	Hawke			Australia	A species of Nannamoria.
Nannamoria hiscocki [132]	Sp. nov	Valid	Hawke	Pliocene	Cameron Inlet Formation	Australia	A species of Nannamoria.
Nannamoria malonei [132]	Sp. nov	Valid	Hawke			Australia	A species of Nannamoria.
Nannamoria persimilis [132]	Sp. nov	Valid	Hawke	Miocene		Australia	A species of Nannamoria.
Naria praehelvola [133]	Sp. nov	Valid	Fehse & Vicián	Miocene		Indonesia	A species of Naria .
Natica (Carinacca) kincaidensis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Natica .
Nebularia soliphila [102]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Nebularia .
Nemaspira [134]	Gen. et comb. et 2 sp. nov	Valid	Mazaev	Early Carboniferous to Late Triassic		Belgium   Russia   Thailand   United Kingdom   United States   China?	A member of the family Gosseletinidae. Genus includes several species formerly assigned to the genera Gosseletina and Globodoma, as well as new species N. shamaevi and N. skuini.
Nitidiclavus senesi [135]	Sp. nov	Valid	Biskupič	Miocene		Slovakia	A member of the family Drilliidae.
Niveria callosa [136]	Sp. nov	Valid	Fehse	Late Oligocene		France	A species of Niveria .
Niveria novosperara [136]	Sp. nov	Valid	Fehse	Late Oligocene		France	A species of Niveria.
Nodocingulum [74]	Gen. et comb. et 2 sp. nov	Valid	Karapunar & Nützel	Late Triassic	San Cassiano Formation	Italy	A member of Pleurotomariida. The type species is "Pleurotomaria" coronata Münster (1841); genus also includes new species N. ernstkittli and possibly also N? turris.
Nodolargena [73]	Gen. et sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A member of the new family Nodolargenidae. Genus includes new species N. frosti.
Nodovoluta [73]	Gen. et sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species N. coronata.
Odostomia malagensis [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Odostomia .
Oligonalia [86]	Gen. et comb. nov	Valid	Lozouet	Oligocene		France	A new genus for "Siphonalia" riparia Lozouet (1999).
Olinderia [91]	Gen. et comb. et 3 sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A member of the family Charitodoronidae. The type species is "Charitodoron" tauzini Lozouet (1991); genus also includes new species O. lestrillensis, O. poustagnacensis and O. verdunensis.
Olivella tehuacanensis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Olivella .
Ondina pinguis [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Ondina .
Onustus undosus [75]	Sp. nov	Valid	Raven	Miocene		Brunei	A species of Onustus .
Opalia tehuacana [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Opalia .
Orbitestella kieli [79]	Sp. nov	Valid	Chernyshev & Goedert	Late Eocene/early Oligocene	Gries Ranch Formation	United States (  Washington)	A member of the family Orbitestellidae.
Orthosurcula ethani [110]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States (  Texas)
Oxyacrum gracilis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Pagonia [73]	Gen. et sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species P. spiralis.
Palaeorhaphis? laevis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Paleofusus [73]	Gen. et 3 sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species P. bellus, P. parvicrassus and P. elegantissima.
Papuliscala? acus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Possibly a species of Papuliscala .
Papuliscala keani [110]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States (  Texas)
Parasassia vargai [103]	Sp. nov	Valid	Vicián & Kovács	Eocene (Lutetian)	Csernye Formation	Hungary	A member of the family Cymatiidae.
Parthenina pacaudi [106]	Nom. nov	Valid	Landau & Micali	Miocene		France	A species of Parthenina ; a replacement name for Pyrgulina (Parthenina) dollfusi Cossmann (1921).
Parvisipho? spiralis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Paskentana dixoni [87]	Sp. nov	Valid	Kaim et al.	Late Cretaceous (Cenomanian to Turonian)		Cyprus	A member of Abyssochrysoidea belonging to the family Paskentanidae.
Paskentana xenophontosi [87]	Sp. nov	Valid	Kaim et al.	Late Cretaceous (Cenomanian to Turonian)		Cyprus	A member of Abyssochrysoidea belonging to the family Paskentanidae.
Perotrochus bermotiensis [120]	Sp. nov	Valid	Bose, Das & Mondal	Oligocene		India	A species of Perotrochus .
Perrona harzhauseri [108]	Sp. nov	Valid	Kovács & Vicián	Middle Miocene	Lajta Limestone Formation	Hungary	A species of Perrona .
Perrona nemethi [108]	Sp. nov	Valid	Kovács & Vicián	Middle Miocene	Lajta Limestone Formation	Hungary	A species of Perrona.
Personopsis merlei [103]	Sp. nov	Valid	Vicián & Kovács	Eocene (Lutetian)	Csernye Formation	Hungary	A species of Personopsis .
Pfefferiola [126]	Nom. nov	Valid	Harzhauser & Neubauer	Eocene		Italy	A member of the family Streptaxidae; a replacement name for Oppenheimiella Pfeffer (1930).
Phos estotiensis [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Phos .
Pleurotomella irminonvilla [111]	Nom. nov	Valid	Pacaud	Eocene (Bartonian)		France	A species of Pleurotomella ; a replacement name for Pleurotomella cossmanni Morellet & Morellet (1946).
Pliciscala obliqua [110]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States (  Texas)
Poirieria (Paziella) delera [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Polinices tehuacana [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Polinices .
Popenoeum tabulatum [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Pressulasphaera [74]	Gen. et comb. nov	Valid	Karapunar & Nützel				A member of Pleurotomariida. The type species is "Pleurotomaria" pamphilus d'Orbigny (1850).
Priscoficus johnfoxi [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Priscoficus nodulina [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Proceraedis [73]	Gen. et 2 sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species P. imbricataria and P. tegumenis.
Prososthenia esuegirottii [137]	Sp. nov	Valid	Dominici & Forli	Pliocene (Zanclean)		Italy	A member of the family Hydrobiidae.
Protoplex? zsoldosi [103]	Sp. nov	Valid	Vicián & Kovács	Eocene (Lutetian)	Csernye Formation	Hungary	A member of the family Cymatiidae.
Proviviparus [138]	Gen. et sp. nov	Valid	Frese & Ponder	Late Jurassic	Talbragar Fish Bed	Australia	A member of the family Viviparidae. Genus includes new species P. talbragarensis
Pseudoananias [74]	Gen. et comb. nov	Valid	Karapunar & Nützel				A member of Pleurotomariida. The type species is "Pleurotomaria" subgranulata Münster (1841).
Pseudokatosira uhlhingleyorum [139]	Sp. nov	Valid	Gründel, Davies & Simonsen	Early Jurassic (Pliensbachian)
Pseudolatirus acuelatus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Pseudolatirus .
Pseudolatirus boettgeri [140]	Nom. nov	Valid	Kovács	Miocene		Romania	A member of the family Fasciolariidae; a replacement name for Fusus sublamellosus Boettger (1906). Originally described as a species of Pseudolatirus; Harzhauser, Landau & Vermeij (2024) tentatively placed it in the genus Takashius . [141]
Pseudosassia [103]	Gen. et comb. et 2 sp. nov	Valid	Vicián & Kovács	Paleocene–Miocene		Austria   Belgium   Bulgaria   Czech Republic   Denmark   France   Germany   Hungary   Italy   Netherlands   Poland   Romania   Serbia   Slovakia   Turkey   Ukraine   United Kingdom	A member of the family Cymatiidae. The type species is "Triton" flandricum Koninck (1838); genus also includes new species P. gurdoni and P. traceyi.
Pseudoterebellum [142]	Gen. et comb. nov	Valid	Maxwell, Rymer & Congdon	Eocene	Ghazij Shales	Indonesia   Pakistan   Saudi Arabia	A member of the family Seraphsidae. The type species is "Terebellum" diversiornatum Eames (1952); genus also includes "Terebellum" saudiensis Abbass (1972) and "Terebellum" olympiae Rolando (2001).
Ptychatractus cataractus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Ptychatractus .
Pulchraspira [113]	Gen. et sp. nov	In press	Yu, Salvador & Jarzembowski	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	Genus includes new species P. teneristoma.
Puposyrnola? confusa [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Possibly a species of Puposyrnola .
Puposyrnola multibaca [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Puposyrnola.
Puposyrnola obliqua [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Puposyrnola.
Puposyrnola shirleyae [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Puposyrnola.
Pusia aturensis [91]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Pusia .
Pusia confunda [84]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A species of Pusia.
Pusia? falsitranssylvanica [84]	Nom. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	Possibly a species of Pusia; a replacement name for Mitra (Costellaria) recticosta var. transsylvanica Boettger (1902).
Pusia subpyrenaica [91]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Pusia .
Pusia virodunensis [91]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Pusia .
Pustularia korneli [133]	Sp. nov	Valid	Fehse & Vicián	Miocene		Indonesia	A species of Pustularia .
Pyrgiscus elegans [143]	Sp. nov	Valid	Tabanelli et al.	Pliocene		Italy	A species of Pyrgiscus .
Pyrgiscus jaapmulderi [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Pyrgiscus.
Pyrgulina marliesae [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Pyrgulina .
Retusa (Cylichnina) praemoryi [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Retusa .
Rhaphaulus zhuoi [113]	Sp. nov	In press	Yu, Salvador & Jarzembowski	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar
Rinaldoella tornata [74]	Sp. nov	Valid	Karapunar & Nützel	Late Triassic	San Cassiano Formation	Italy	A member of Pleurotomariida.
Ringicula taenia [110]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States (  Texas)	A species of Ringicula .
Sansonia texana [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Sassella [73]	Gen. et 2 sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species S. mixta and S. frosti.
Scalptia nemethi [144]	Sp. nov	Valid	Kovács & Vicián	Miocene	Lajta Formation	Hungary	A species of Scalptia .
Scaphella kendrae [145]	Sp. nov	Valid	Petuch & Berschauer	Pliocene (Zanclean)	Murdock Formation	United States (  Florida)	A species of Scaphella .
Schizogonium undae [74]	Sp. nov	Valid	Karapunar & Nützel	Late Triassic	San Cassiano Formation	Italy	A member of Pleurotomariida.
Seraphs kaindraperi [142]	Sp. nov	Valid	Maxwell, Rymer & Congdon	Eocene (Priabonian)		Jamaica	A member of the family Seraphsidae.
Similalvania [76]	Gen. et comb. nov	Valid	Chirli & Forli	Pliocene		Italy	A member of the family Rissoidae. The type species is "Alvania" magistra Chirli (2006)
Solariella microstriata [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Solariella .
Solariorbis planulatis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Squamoworthenia [127]	Gen. et comb. nov	Valid	Mazaev	Carboniferous		Australia   Germany   Kazakhstan	Genus includes S. duponti (Holzapfel, 1889) and "Worthenia" crenilunula Yoo (1994).
Stellaria striatissima [75]	Sp. nov	Valid	Raven	Miocene		Malaysia	A species of Stellaria .
Striacingulum [74]	Gen. et comb. nov	Valid	Karapunar & Nützel				A member of Pleurotomariida. The type species is "Pleurotomaria" cancellatocingulata Klipstein (1844).
Striaticostatum figus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Stuckenbergispira dombarensis [127]	Sp. nov	Valid	Mazaev	Early Carboniferous		Kazakhstan
Sveltella novus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Sveltella .
Sveltia sofiae [146]	Sp. nov	Valid	Landau & da Silva	Pliocene		Portugal	A species of Sveltia .
Syrnola debrae [110]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States (  Texas)	A species of Syrnola .
Taioma? argilla [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Taioma calxa [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Taranis occulta [72]	Sp. nov	Valid	Brunetti & Cresti	Pliocene		Italy	A species of Taranis .
Teinostoma regularis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Teinostoma .
Terebellum humilispirum [75]	Sp. nov	Valid	Raven	Miocene		Malaysia	A species of Terebellum .
Terebra (Mirula) mexia [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Terebra .
Terebrifusus megahani [110]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States (  Texas)
Thylacodes devriesi [147]	Sp. nov	In press	Sanfilippo et al.	Miocene		Peru	A species of Thylacodes .
Tornatellaea globosa [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Tornatellaea linifera [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Tripsycha strapplei [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Tritia miniridibunda [86]	Sp. nov	Valid	Lozouet	Miocene		France	A species of Tritia .
Tritia praebasteroti [86]	Sp. nov	Valid	Lozouet	Oligocene (Chattian)		France	A species of Tritia.
Tritiaria formosa [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Trivia disjuncta [136]	Sp. nov	Valid	Fehse	Late Oligocene		France	A species of Trivia .
Trivia simplex [136]	Sp. nov	Valid	Fehse	Late Oligocene		France	A species of Trivia.
Trona colossus [118]	Sp. nov	Valid	Groves & Landau	Early–middle Miocene	Baitoa Formation	Dominican Republic	A species of Trona .
Truncatella jiaozhouensis [148]	Sp. nov	In press	Yu et al.	Late Cretaceous	Jiaolai Basin	China	A species of Truncatella .
Tumidosipho [73]	Gen. et sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	Genus includes new species T. tehuacana.
Turbo (Marmarostoma) ishidai [149]	Sp. nov	Valid	Tomida, Sano & Kase	Miocene	Ena Limestone	Japan	A species of Turbo .
Turbonilla bincki [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Turbonilla .
Turbonilla bongiardinoi [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Turbonilla.
Turbonilla crovatoi [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Turbonilla.
Turbonilla malacitana [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Turbonilla.
Turbonilla mauroi [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Turbonilla.
Turbonilla plioalboranensis [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Turbonilla.
Turbonilla velerinensis [106]	Sp. nov	Valid	Landau & Micali	Pliocene		Spain	A species of Turbonilla.
Turricula frosti [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Turricula .
Turricula imbricata [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Turricula.
"Turritella" calax [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Umbilia furneauxensis [150]	Sp. nov	Valid	Southgate, Militz & Roberts	Pliocene		Australia	A species of Umbilia .
Unitas duomillias [110]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States (  Texas)
Unitas euani [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Unitas petiti [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Valvata jiaolaiensis [148]	Sp. nov	In press	Yu et al.	Late Cretaceous	Jiaolai Basin	China	A species of Valvata .
Vanikoropsis bashforthi [151]	Sp. nov	Valid	Schnetler & Nielsen	Paleocene (Danian)	Agatdal Formation	Greenland	Possibly a member of the family Vanikoridae.
Vanikoropsis jakobseni [151]	Sp. nov	Valid	Schnetler & Nielsen	Paleocene (Danian)	Agatdal Formation	Greenland	Possibly a member of the family Vanikoridae.
Vanikoropsis mortenseni [151]	Sp. nov	Valid	Schnetler & Nielsen	Paleocene (Selandian)	Kerteminde Marl	Denmark	Possibly a member of the family Vanikoridae.
Varicospira bekenuensis [75]	Sp. nov	Valid	Raven	Miocene		Malaysia	A species of Varicospira .
Varicospira reticulata [75]	Sp. nov	Valid	Raven	Miocene		Malaysia	A species of Varicospira.
Vermicularia? columella [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Vexillum transalpinum [84]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria   Hungary   Romania   Turkey	A species of Vexillum .
Vitrinella discus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Vitrinella .
Vitrinella praelaevis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Vitrinella.
Volutifusus dougsheltoni [145]	Sp. nov	Valid	Petuch & Berschauer	Pliocene (Piacenzian)	Tamiami Formation	United States (  Florida)	A species of Volutifusus .
Volutifusus kissimmeensis [145]	Sp. nov	Valid	Petuch & Berschauer	Pliocene (Piacenzian)	Tamiami Formation	United States (  Florida)	A species of Volutifusus.
Volutomorpha ultima [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Wormsina [102]	Gen. et comb. nov	Valid	Harzhauser & Landau	Miocene		Romania	A member of the family Mitridae. The type species is "Mitra (Cylindra)" transsylvanica Hoernes & Auinger (1880).
Wortheniella klipsteini [74]	Sp. nov	Valid	Karapunar & Nützel	Late Triassic	San Cassiano Formation	Italy	A member of Pleurotomariida.
Wortheniella paolofedelei [74]	Sp. nov	Valid	Karapunar & Nützel	Late Triassic	San Cassiano Formation	Italy	A member of Pleurotomariida.
Zafrona sphaerocorrugata [89]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria   Bosnia and Herzegovina   Bulgaria   Hungary   Romania   Ukraine	A species of Zafrona .
Zebinella tehuacana [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Zebinella .
Zonaria vokesae [118]	Sp. nov	Valid	Groves & Landau	Early–middle Miocene	Baitoa Formation	Dominican Republic	A species of Zonaria .

Bivalves

New taxa

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Acar beadata [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Acar .
Amphidonte mirkamalovi [152]	Sp. nov	Valid	Metelkin & Kosenko	Early Cretaceous (Aptian)			An oyster.
Arcopsis subrhombus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Arcopsis tumulus [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Arkhanguelskya [153]	Gen. et comb. nov	Valid	Cooper & Leanza	Cretaceous			A member of the family Buchotrigoniidae. Genus includes "Trigonia" weberi Arkhangelsky (1916).
Baluchicardia? eoplata [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Bengtsonigonia [154]	Nom. nov	Valid	Ceccolini & Cianferoni	Early Cretaceous	Riachuelo Formation	Brazil	A replacement name for Bengtsonella Cooper & Leanza (2019).
Bohemigonia [155]	Gen. et sp. et comb. nov	Valid	Cooper			Czech Republic	A member of the family Megatrigoniidae. The type species is B. frici; genus also includes "Trigonia" debuchii Geinitz (1840).
Caryocorbula? praefigera [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Chama ferrata [156]	Sp. nov	Valid	Berezovsky	Eocene		Ukraine	A species of Chama .
Chama subcalcarata [156]	Sp. nov	Valid	Berezovsky	Eocene		Ukraine	A species of Chama.
Corbulamella palaeocenica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Crassatellina minuta [157]	Sp. nov	Valid	Jaitly et al.	Late Cretaceous (Turonian)	Nodular Limestone Formation	India	A member of the family Lucinidae belonging to the subfamily Eriphylinae.
Crassatellina paleocaenica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Cuspidaria texana [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Cuspidaria .
Diplodonta frosti [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Diplodonta paleocaenica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Dorbigonia [155]	Gen. et comb. nov	Valid	Cooper	Cretaceous		France	A member of the family Megatrigoniidae. Genus includes "Trigonia" disparilis d'Orbigny (1844).
Elianegonia [154]	Nom. nov	Valid	Ceccolini & Cianferoni	Late Cretaceous		Madagascar	A replacement name for Elianella Cooper (2015).
Eomiltha strangensis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Eurydesma sacculum snapperensis [158]	Ssp. nov	Valid	Waterhouse	Permian	Wandrawandian Formation	Australia	A bivalve belonging to the group Pectinida and the family Eurydesmidae.
Freneixicardia picturata [159]	Sp. nov	Valid	Berezovsky	Eocene		Ukraine	A cockle.
Frenguelliella eopacifica [160]	Sp. nov	Valid	Echevarría, Damborenea & Manceñido	Early Jurassic		Argentina	A member of Trigoniida belonging to the family Frenguelliellidae.
Glycymeris laevigata [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Glycymeris .
Grammatodon superstes [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Gregariella frosti [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Gregariella .
Himenourella [155]	Gen. et comb. nov	Valid	Cooper	Cretaceous		Japan   Russia	A member of the family Megatrigoniidae. Genus includes "Trigonia" jimbonis Strand (1928), "Trigonia" sawatai Yehara (1923), "Apiotrigonia" subjimboi Miroljubov in Vereshchagin et al. (1965) and "Trigonia" subovalis Jimbo (1894).
Kolymia rutskovi [161]	Sp. nov	Valid	Biakov in Biakov et al.	Permian		Russia
Kushmurunskya [155]	Gen. et comb. nov	Valid	Cooper	Cretaceous		Kazakhstan	A member of the family Megatrigoniidae. Genus includes "Trigonia" gladkowskii Shcheglova-Borodina (1960).
Kyzylkumgonia [155]	Gen. et comb. nov	Valid	Cooper	Cretaceous			A member of the family Megatrigoniidae. Genus includes "Trigonia" syrdariensis Arkhangelsky (1916), "Trigonia" turcmenensis Arkhangelsky (1916) and "Megatrigonia" tagamensis Belyakova (1980).
Loxocardium marmoreum [159]	Sp. nov	Valid	Berezovsky	Eocene		Ukraine	A cockle.
Lucina crassiplica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Lucina .
Lucina multivittae [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Lucina.
Lucina tehuacanensis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Lucina.
Maedagonia [155]	Gen. et comb. et nom. nov	Valid	Cooper	Cretaceous		Japan   Russia	A member of the family Megatrigoniidae. Genus includes "Apiotrigonia" mikasaensis Tashiro (1979), "Apiotrigonia" ashizawaensis Saito (1962), "Apiotrigonia" crassoradiata Nakano (1957), "Apiotrigonia" futabaensis Maeda & Kawabe (1967), "Apiotrigonia" hetonaiana Tashiro (1978), "Apiotrigonia" hironoensis Maeda & Kawabe (1967), "Apiotrigonia" jimboi Nakano (1957), "Apiotrigonia" obliquecostata Nakano (1957), "Apiotrigonia" obsoleta Nakano (1957), "Apiotrigonia" orikiensis Maeda & Kawabe (1967), "Apiotrigonia" undulosa Nakano (1957) and "Apiotrigonia" utoensis Tashiro (1972), as well as M. yabei (a replacement name for Trigonia subovalis var. minor Yabe & Nagao, 1925).
Martesia mazanticus [162]	Sp. nov	Valid	Castañeda-Posadas, Trujillo-Hernández & Zúñiga-Mijangos	Miocene	Mexican amber	Mexico	A species of Martesia .
Matsudagonia [155]	Gen. et comb. nov	Valid	Cooper	Cretaceous		Japan	A member of the family Megatrigoniidae. Genus includes "Apiotrigonia" dubia Tashiro (1979).
Moerickella [160]	Gen. nov	Valid	Echevarría, Damborenea & Manceñido	Early Jurassic		Argentina	A member of Trigoniida, most likely the oldest member of the family Myophorellidae.
Naiadites devonicus [163]	Sp. nov	Valid	Scholze & Gess	Devonian (Famennian)	Witpoort Formation	South Africa
Opis reticulata [157]	Sp. nov	Valid	Jaitly et al.	Late Cretaceous (Turonian)	Nodular Limestone Formation	India	A member of the family Lucinidae belonging to the subfamily Opinae.
Ostrea jibananandai [164]	Sp. nov	Valid	Halder & Mitra	Eocene (Ypresian)	Cambay Shale	India	A species of Ostrea .
Palaeolignopholas [165]	Gen. et sp. nov	Valid	Bolotov et al.	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A member of the family Pholadidae belonging to the subfamily Martesiinae. The type species is P. kachinensis.
Pandora? paleocenica [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Parmicorbula? sublaevis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Perezigonia [154]	Nom. nov	Valid	Ceccolini & Cianferoni	Middle Jurassic		Chile	A replacement name for Perezella Cooper (2015).
Pojetaia robsonae [166]	Sp. nov	Valid	Peel & Skovsted	Cambrian Stage 4	Kane Basin Formation	Canada (  Nunavut)
Porterius? strangensis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Poultoniella [155]	Gen. et comb. nov	Valid	Cooper	Cretaceous		Canada (  British Columbia)	A member of the family Megatrigoniidae. Genus includes "Trigonia" newcombei Packard (1921).
Promyophorella basoaltorum [160]	Sp. nov	Valid	Echevarría, Damborenea & Manceñido	Early Jurassic		Argentina	A member of Trigoniida belonging to the family Myophorellidae.
Promyophorella? sanjuanina [160]	Sp. nov	Valid	Echevarría, Damborenea & Manceñido	Early Jurassic		Argentina	A member of Trigoniida belonging to the family Myophorellidae.
Pseudapiotrigonia [155]	Gen. et comb. nov	Valid	Cooper			United States (  South Dakota   Utah)	A member of the family Vaugoniidae. Genus includes "Trigonia" sturgisensis Whitfield & Hovey (1906), as well as "Vaugonia" utahensis Imlay (1964).
Pseudovaugonia [160]	Gen. nov	Valid	Echevarría, Damborenea & Manceñido	Early Jurassic		Argentina	A member of Trigoniida belonging to the family Myophorellidae.
Pteromeris nodulina [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Pteromeris .
Repmanigonia [154]	Nom. nov	Valid	Ceccolini & Cianferoni	Jurassic		Russia	A replacement name for Repmania Kolesnikov (1980).
Schedocardia imperfecta [159]	Sp. nov	Valid	Berezovsky	Eocene		Ukraine	A cockle.
Sinoliaoningia [154]	Nom. nov	Valid	Ceccolini & Cianferoni	Late Triassic	Yangcaogou Formation	China	A replacement name for Liaoningia Yu & Dong (1993).
Sokolovskya [155]	Gen. et comb. nov	Valid	Cooper				A member of the family Megatrigoniidae. Genus includes "Apiotrigonia" levinae Pojarkova (1990) and "Apiotrigonia" khoresmensis Belyakova (1965).
Sonoragonia [155]	Gen. et comb. et nom. nov	Valid	Cooper	Early Cretaceous	Lowell Formation	United States (  Arizona)	A member of the family Megatrigoniidae. Genus includes "Trigonia" cragini Stoyanow (1949), as well as S. scotti (a replacement name for Trigonia kitchini Stoyanow, 1949).
Sphenotomorpha orientalis [167]	Sp. nov	Valid	Dalenz Farjat	Devonian (Pragian)	Icla Formation	Bolivia	A member of Modiomorphida belonging to the family Modiomorphidae.
Sunetta crassatelliformis [168]	Sp. nov	Valid	Haga & Fukuda in Fukuda et al.	Early Pleistocene		Japan	A species of Sunetta .
Sunetta nomurai [168]	Sp. nov	Valid	Haga & Fukuda in Fukuda et al.	Pleistocene		Taiwan	A species of Sunetta.
Syndesmyella pliominor [169]	Sp. nov	Valid	Brunetti & Cresti	Early Pliocene		Spain	A member of the family Semelidae.
Tellina brevis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A species of Tellina .
Terrypoultoniella [160] [170]	Gen. et sp. nov	Valid	Echevarría, Damborenea & Manceñido	Early Jurassic (Pliensbachian–Toarcian)		Argentina   Portugal?	A member of Trigoniida belonging to the family Frenguelliellidae. The type species is "Poultoniella" jaworskii Echevarría, Damborenea & Manceñido (2021); genus might also include "Trigonia" malladae Choffat (1885).
Tindaria hamuroi [171]	Sp. nov	Valid	Amano & Haga	Miocene	Higashibessho Formation	Japan	A member of the family Tindariidae.
Titomaya [172]	Gen. et comb. et sp. nov	Valid	Alvarez & del Río	Paleocene (Danian)	Lefipán Formation Salamanca Formation	Argentina	A member of Venerida belonging to the group Veneroidea. Genus includes "Meretrix" chalcedonica, as well as new species T. longobucca.
Tivelina texana [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Tivelina trigonalis [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)
Unionites kobyumensis [173]	Sp. nov	Valid	Biakov in Biakov & Kutygin	Late Permian		Russia
Vaccinites alencasteri [174]	Sp. nov	Valid	Mitchell	Late Cretaceous (probably late Turonian or early Coniacian)	Cuautla Formation	Mexico	A rudist bivalve.
Vaccinites temazcali [174]	Sp. nov	Valid	Mitchell	Late Cretaceous (Campanian)	Temazcal Limestone	Mexico	A rudist bivalve.
Villamilia [153]	Gen. et comb. nov	Valid	Cooper & Leanza	Cretaceous		Colombia	A member of the family Buchotrigoniidae. Genus includes "Buchotrigonia" etayoi Villamil (1992), "Trigonia" humboldtii Buch (1839), "Buchotrigonia" kauffmani Villamil (1992), "Buchotrigonia" perezi Villamil (1992) and "Vaugonia niranohamensis" santamariae Geyer (1973; raised to the rank of the species V. santamariae).
Weyla santuccii [175]	Sp. nov	Valid	Damborenea et al.	Early Jurassic (Hettangian)	Pogibshi Formation	United States (  Alaska)	A scallop.
Whitfieldiella luceae [174]	Sp. nov	Valid	Mitchell	Late Cretaceous (Campanian)	Clifton Limestone Cotui Limestone	Jamaica   United States (  Puerto Rico)	A rudist bivalve.
Yunannia [176]	Gen. et 2 sp. nov	Valid	Zhang & Niu in Zhang et al.	Ordovician	Dongchong Formation	China	A member of Pteriomorphia of uncertain phylogenetic placement. The type species is Y. gankengensis; genus also includes Y. yunkaiensis.

Research

• A study on the evolution and possible causes of the extinction of alatoconchid bivalves is published by Chen et al. (2021). ^[177]
• A study on the arcoid bivalve diversity during the Eocene doubthouse interval of global climate cooling is published by Hickman (2021). ^[178]

Other molluscs

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Anabarella? navaranae [179]	Sp. nov	Valid	Peel	Cambrian Stage 4	Aftenstjernesø Formation	Greenland
Cadulus praepalmerae [73]	Sp. nov	Valid	Garvie	Paleocene (Danian)	Kincaid Formation	United States (  Texas)	A tusk shell, a species of Cadulus .
Catalanispira prima [105]	Sp. nov	Valid	Ebbestad & Cope	Ordovician (Floian)		United Kingdom	A member of the family Onychochilidae.
Figurina? polaris [179]	Sp. nov	Valid	Peel	Cambrian Stage 4	Aftenstjernesø Formation	Greenland	A helcionellid. Subsequently made the type species of a separate genus Sermeqiconus. [180]
Hippopharangites groenlandicus [179]	Sp. nov	Valid	Peel	Cambrian Stage 4	Aftenstjernesø Formation	Greenland	A member of the stem group of Aculifera.
Holoornatus [181]	Gen. et sp. nov	In press	Zhang et al.	Cambrian (Fortunian)		China	A maikhanellid. Genus includes new species H. strigatus.
Inughuitoconus [179]	Gen. et sp. nov	Valid	Peel	Cambrian Stage 4	Aftenstjernesø Formation	Greenland	A member of the stem group of Aculifera. Genus includes new species I. borealis.
Lepidozona luzanovkensis [182]	Sp. nov	Valid	Sirenko	Paleocene	Luzanovka Beds	Ukraine	A chiton, a species of Lepidozona .
Minodentalium [183]	Gen. et 2 sp. et comb. nov	Valid	Asato & Kase	Permian	Akasaka Limestone	Belgium   Japan   New Zealand   United States	A tusk shell. Genus includes new species M. hayasakai and M. okumurai, as well as "Plagioglypta" furcata Waterhouse (1980), "Pl." girtyi Knight (1940), "Pl." subannulata Easton (1962), "Dentalium" ingens De Koninck (1843), "D." meekianum Geinitz (1866), "Pl." prosseri Morningstar (1922), "Dentalium" priscum Münster in Goldfuss (1842) and "D." herculeum De Koninck (1863).
Ocruranus? kangerluk [179]	Sp. nov	Valid	Peel	Cambrian Stage 4	Aftenstjernesø Formation	Greenland	A member of the stem group of Aculifera.
Prodentalium onoi [183]	Sp. nov	Valid	Asato & Kase	Permian	Akasaka Limestone	Japan	A tusk shell.
Progadilinoides [184]	Gen. et sp. nov	Valid	Guzhov	Early Cretaceous (Aptian)		Russia	A tusk shell belonging to the family Pulsellidae. The type species is P. balakovensis.
Pseudomyona groenlandica [185]	Sp. nov	Valid	Peel	Cambrian (Drumian)	Fimbuldal Formation	Greenland	A member of Rostroconchia belonging to the group Tuarangiida and the family Tuarangiidae.
Qingjianglepas [186]	Gen. et sp. nov	In press	Li et al.	Cambrian		China	A minute limpet-shaped shell, probably belonging to a helcionelloid. Genus includes new species Q. elegans.
Stenotheca? higginsi [179]	Sp. nov	Valid	Peel	Cambrian Stage 4	Aftenstjernesø Formation	Greenland

General research

• A study on the relationship between temperature and diversity in the fossil record of marine molluscs over the last 145 million years is published by Boag, Gearty & Stockey (2021). ^[187]
• A study on the relationship between the species richness of shallow-marine molluscs, the number of ecological functional groups, and oceanic temperature in the fossil record of New Zealand over the last ~40 million years is published by Womack et al. (2021). ^[188]

References

1. Korn, D.; Hairapetian, V.; Ghaderi, A.; Leda, L.; Schobben, M.; Akbari, A. (2021). "The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)". European Journal of Taxonomy (776): 1–106. doi: 10.5852/ejt.2021.776.1559 . S2CID   240081197.
2. Korn, D.; Ghaderi, A.; Devaere, L.; Khanehbad, M. (2021). "Ammonoids from the Carboniferous-Permian boundary of east-central Iran". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 301 (3): 335–345. doi:10.1127/njgpa/2021/1015. S2CID   239690567.
3. Énay, R.; Mangold, C. (2021). "Jurassic ammonites from Central Saudi Arabia (Jebel Tuwaiq and adjacent areas)". Revue de Paléobiologie, Genève. 40 (1): 1–197. doi:10.5281/zenodo.5008788.
4. Nakada, K.; Goto, M.; Meister, C.; Matsuoka, A. (2021). "The late Pliensbachian (Early Jurassic) ammonoid Amaltheus in Japan: systematics and biostratigraphic and paleobiogeographic significance". Journal of Paleontology. 95 (5): 1004–1021. Bibcode:2021JPal...95.1004N. doi:10.1017/jpa.2021.39. S2CID   236379379.
5. Taylor, D.; Guex, J.; Lucas, S. G. (2021). "Ammonoids of the latest Triassic Gabbs Formation at New York Canyon, Mineral County, Nevada". New Mexico Museum of Natural History and Science Bulletin. 82: 393–425. Archived from the original on 2021-02-21. Retrieved 2021-01-02.
6. Taylor, D.; Guex, J. (2021). "Early Sinemurian ammonoids and biochronology of the Sunrise Formation, New York Canyon, Mineral County, Nevada". New Mexico Museum of Natural History and Science Bulletin. 82: 371–391. Archived from the original on 2021-02-21. Retrieved 2021-01-04.
7. Smyshlyaeva, O. P.; Zakharov, Y. D. (2021). "New findings of Early Triassic representatives of the suborders Ussuritina and Paraceltitina (Ammonoidea) from south Primorye". Paleontological Journal. 55 (5): 489–496. doi:10.1134/S0031030121050142. S2CID   238640246.
8. Söte, T.; Becker, R. T.; Herd, K. J.; Bockwinkel, J. (2021). "Upper Frasnian Tornoceratidae (Ammonoidea) from the Sand Formation (Bergisch Gladbach-Paffrath Syncline, Rhenish Massif)". PalZ. 95 (2): 237–273. doi: 10.1007/s12542-020-00546-3 . S2CID   235220733.
9. Galácz, A. (2021). "Kheraiceras, the Callovian (Middle Jurassic) dimorphic ammonite genus in the South Hungarian Mecsek and Villány Mts". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 299 (3): 275–290. doi:10.1127/njgpa/2021/0969. S2CID   233601499.
10. Kment, K. (2021). "Biostratigraphy of the Hettangian Stage in the Northern Calcareous Alps (Austria, Bavaria) with ammonoids and their classification into biohorizons". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 301 (3): 233–282. doi:10.1127/njgpa/2021/1007. S2CID   239627293.
11. Nannarone, C.; Bilotta, M. (2021). "Ammoniti titoniani (Zone a Fallauxi e a Volanense) del massiccio Monte Acuto-Monte Catria (Appennino umbromarchigiano): nuovi dati sulla famiglia Simoceratidae Spath, 1924" (PDF). Annali del Museo Civico di Rovereto. Sezione: Archeologia, Storia, Scienze Naturali. 37: 183–234.
12. Simms, M. J.; Edmunds, M. (2021). "Ammonites from the Lias Group (Lower Jurassic, Sinemurian and Pliensbachian) of White Park Bay, Co. Antrim, Northern Ireland". Proceedings of the Geologists' Association. 132 (6): 743–763. Bibcode:2021PrGA..132..743S. doi:10.1016/j.pgeola.2021.06.001. S2CID   237768384.
13. Wilmsen, M.; Wondrejz, C.; Püttmann, T.; Kennedy, W. J. (2021). "Cibolaites petraschecki sp. nov., a new collignoniceratine ammonite from the Brießnitz Formation of Saxony (Turonian, Elbtal Group, Germany)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 300 (2): 189–199. doi:10.1127/njgpa/2021/0984. S2CID   236420288.
14. Bert, D.; Reboulet, S.; Vernet, B.; Bersac, S.; Canut, L. (2021). "Early Crioceratites (heteromorphic ammonites) from the lower Hauterivian of south-eastern France: systematics, intraspecific variation and biostratigraphic implications". Cretaceous Research. 126: Article 104903. Bibcode:2021CrRes.12604903B. doi:10.1016/j.cretres.2021.104903.
15. Misaki, A.; Tsujino, Y. (2021). "A New Species of the Heteromorph Ammonoid Didymoceras from the Upper Cretaceous Izumi Group in Shikoku, Southwestern Japan, and Its Evolutionary Implications". Paleontological Research. 25 (2): 127–144. doi:10.2517/2020PR010. S2CID   233029551.
16. Vermeulen, J.; Leroy, L.; Borro, A.; Lazarin, P.; Mascarelli, E. (2021). "Nouveau taxa de la famille des Holcodiscidae Spath, 1923 (Ammonitida, Ammonitina, Barremitoidea)" (PDF). Riviera Scientifique. 105: 81–96.
17. Witts, J. D.; Landman, N. H.; Garb, M. P.; Irizarry, K. M.; Larina, E.; Thibault, N.; Razmjooei, M. J.; Yancey, T. E.; Myers, C. E. (2021). "Cephalopods from the Cretaceous-Paleogene (K-Pg) boundary interval on the Brazos River, Texas, and extinction of the ammonites". American Museum Novitates (3964): 1–52. doi:10.1206/3964.1. hdl:2246/7250. ISSN   0003-0082. S2CID   231597207.
18. Korn, D. (2021). "Revision of Tornoceras typus (Sandberger & Sandberger, 1851) – an iconic Devonian ammonoid of a clade with slow morphological evolution". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 302 (2): 147–167. doi:10.1127/njgpa/2021/1026. S2CID   243895395.
19. Tongtherm, K.; Nabhitabhata, J.; Tuanapaya, S. (2021). "Two new Triassic eutomocerid ammonoid cephalopods (Ammonoidea: Ceratitidae) from southeastern peninsular Thailand". Phuket Marine Biological Center Research Bulletin. 78: 147–153. doi:10.14456/pmbcrb.2021.11.
20. Korn, D.; Bockwinkel, J. (2021). "The pharciceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea)". European Journal of Taxonomy (771): 1–79. doi: 10.5852/ejt.2021.771.1503 . S2CID   239161530.
21. Zong, P.; Becker, R. T.; Ma, X. (2021). "The ammonoid Gonioclymenia fauna from the Upper Devonian (upper Famennian) of western Junggar, northwestern China". Geological Journal. 56 (12): 5967–5986. doi:10.1002/gj.4182. S2CID   236251674.
22. Mietto, P.; Jin, X.; Manfrin, S.; Lu, G.; Shi, Z.; Gianolla, P.; Huang, X.; Preto, N. (2021). "Onset of sedimentation near the Carnian/Norian boundary in the northwestern Sichuan Basin: New evidence from ammonoid biostratigraphy and zircon U–Pb geochronology". Palaeogeography, Palaeoclimatology, Palaeoecology. 567: Article 110246. Bibcode:2021PPP...56710246M. doi:10.1016/j.palaeo.2021.110246. hdl: 11392/2437547 . S2CID   233573583.
23. Matsukawa, M. (2021). "Aptian (Lower Cretaceous) ammonite fauna of the Todai Formation, Nagano Prefecture, Japan". Cretaceous Research. 126: Article 104771. Bibcode:2021CrRes.12604771M. doi:10.1016/j.cretres.2021.104771.
24. Polkovoy, K. S. (2021). "A new genus Kislovodskoceras (Desmoceratidae, Ammonoidea) from the middle Aptian of the vicinity of Kislovodsk (northern Caucasus)". Paleontological Journal. 55 (5): 520–528. doi:10.1134/S0031030121050129. S2CID   238640207.
25. Goy, A.; Comas-Rengifo, M. J. (2021). "Nejdia (Hildoceratidae, Ammonoidea) in the Toarcian (Lower Jurassic) of the Iberian Peninsula. Systematics, phylogenetic affinities and palaeobiogeography". Historical Biology. 33 (12): 3173–3190. doi:10.1080/08912963.2020.1853719. S2CID   233815255.
26. Jenks, J. F.; Maekawa, T.; Ware, D.; Shigeta, Y.; Brayard, A.; Bylund, K. G. (2021). "Late Griesbachian (Early Triassic) ammonoids and nautiloids from the Dinwoody Formation at Crittenden Springs, Elko County, Nevada". New Mexico Museum of Natural History and Science Bulletin. 86: 1–23.
27. Gulyaev, D. B.; Ippolitov, A. P. (2021). "Lower Callovian of Kanev Dislocations, Cherkasy Oblast, Ukraine: Ammonites and Stratigraphy". Stratigraphy and Geological Correlation. 29 (7): 767–847. Bibcode:2021SGC....29..767G. doi:10.1134/S0869593821070029. S2CID   245569131.
28. Mitta, V. V. (2021). "Ammonites of the Ryazanian stage of the Russian Platform: genus Pronjaites Sasonova". Paleontological Journal. 55 (5): 511–519. doi:10.1134/S0031030121050105. S2CID   238640464.
29. Jain, S.; Mazur, M. (2021). "New dimorphic species of the genus Rollierites Jeannet from southern Poland". Annales Societatis Geologorum Poloniae. 91 (4): 405–418. doi: 10.14241/asgp.2021.21 . S2CID   246497005.
30. Samaniego-Pesqueira, A.; Moreno-Bedmar, J. A.; Álvarez-Sánchez, L.E.Ó.N.F. (2021). "Upper Aptian ammonite biostratigraphy of the Agua Salada and Mural formations, Sonora State, northwest Mexico". Journal of South American Earth Sciences. 112, Part 1: Article 103558. Bibcode:2021JSAES.11203558S. doi:10.1016/j.jsames.2021.103558. S2CID   244185303.
31. Kennedy, W. J.; Latil, J.-L. (2021). "Lower Cenomanian ammonites from la Bédoule, Bouches-du-Rhône, France". Revue de Paléobiologie, Genève. 40 (1): 211–234. doi:10.5281/zenodo.5008792.
32. Mitta, V. V. (2021). "Ammonites and Stratigraphy of the Upper Bajocian Strenoceras niortense Zone in the Interfluve between the Kuban and Urup Rivers (Northern Caucasus)". Paleontological Journal. 55 (12): 1458–1475. doi:10.1134/S0031030121120042. S2CID   247387371.
33. Tabrizi, N. G.; Ghaderi, A.; Ashouri, A. R.; Korn, D. (2021). "A new record of the Permian ammonoid family Cyclolobidae from Julfa (NW Iran)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 302 (2): 221–230. doi:10.1127/njgpa/2021/1029. S2CID   243915631.
34. Korn, D. (2021). "Revision of Tornoceras frechi Wedekind, 1918 and consequences for the Late Devonian ammonoid stratigraphy". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 300 (3): 291–302. doi:10.1127/njgpa/2021/0991. S2CID   236231776.
35. Lehmann, J.; Bayliss, H. M. (2021). "The heteromorph ammonite Tropaeum (Tropaeum) evolutum sp. nov. from the Hythe Formation, Lower Greensand Group (basal upper Aptian, Lower Cretaceous) of Maidstone, Kent, UK". Cretaceous Research. 132: Article 105110. doi:10.1016/j.cretres.2021.105110. S2CID   244808527.
36. Zaitsev, B. A. (2021). "Early Jurassic (Late Sinemurian–Early Pliensbachian) Ammonites from the Limestone Boulders of Bodrak River Basin, Southwest Crimea". Stratigraphy and Geological Correlation. 29 (4): 411–433. Bibcode:2021SGC....29..411Z. doi:10.1134/S0869593821040043. S2CID   236640510.
37. Hoffmann, R.; Slattery, J. S.; Kruta, I.; Linzmeier, B. J.; Lemanis, R. E.; Mironenko, A.; Goolaerts, S.; De Baets, K.; Peterman, D. J.; Klug, C. (2021). "Recent advances in heteromorph ammonoid palaeobiology". Biological Reviews . 96 (2): 576–610. doi: 10.1111/brv.12669 . PMID   33438316.
38. Dai, X.; Korn, D.; Song, H. (2021). "Morphological selectivity of the Permian-Triassic ammonoid mass extinction". Geology. 49 (9): 1112–1116. Bibcode:2021Geo....49.1112D. doi: 10.1130/G48788.1 . S2CID   236274865.
39. Bischof, E. A.; Schlüter, N.; Korn, D.; Lehmann, J. (2021). "Ontogeny of highly variable ceratitid ammonoids from the Anisian (Middle Triassic)". PeerJ. 9: e10931. doi: 10.7717/peerj.10931 . PMC   7934684 . PMID   33717689.
40. Cherns, L.; Spencer, A. R. T.; Rahman, I. A.; Garwood, R. J.; Reedman, C.; Burca, G.; Turner, M. J.; Hollingworth, N. T. J.; Hilton, J. (2021). "Correlative tomography of an exceptionally preserved Jurassic ammonite implies hyponome-propelled swimming" (PDF). Geology. 50 (4): 397–401. doi:10.1130/G49551.1. hdl:10141/622963. S2CID   245051452.
41. Klug, C.; Schweigert, G.; Tischlinger, H.; Pochmann, H. (2021). "Failed prey or peculiar necrolysis? Isolated ammonite soft body from the Late Jurassic of Eichstätt (Germany) with complete digestive tract and male reproductive organs". Swiss Journal of Palaeontology . 140 (1): Article 3. doi: 10.1186/s13358-020-00215-7 . PMC   7813712 . PMID   33505352.
42. Johnson, E. H.; DiMarco, B. M.; Peterman, D. J.; Carter, A. M.; Allmon, W. D. (2021). "Did shell-crushing predators drive the evolution of ammonoid septal shape?". Paleobiology. 47 (4): 666–679. Bibcode:2021Pbio...47..666J. doi:10.1017/pab.2021.13. S2CID   234854806.
43. Peterman, D. J.; Ritterbush, K. A.; Ciampaglio, C. N.; Johnson, E. H.; Inoue, S.; Mikami, T.; Linn, T. J. (2021). "Buoyancy control in ammonoid cephalopods refined by complex internal shell architecture". Scientific Reports. 11 (1): Article number 8055. Bibcode:2021NatSR..11.8055P. doi:10.1038/s41598-021-87379-5. PMC   8044186 . PMID   33850189.
44. Frau, C.; Boursicot, P.-Y. (2021). "Another lesson from beautiful monsters: the case of 'sex reversals' in the Ammonoidea and their significance". BMC Ecology and Evolution. 21 (1): Article number 133. doi: 10.1186/s12862-021-01857-y . PMC   8236137 . PMID   34174830.
45. Hoffmann, R.; Morón-Alfonso, D.; Klug, C.; Tanabe, K. (2021). "Ammonoid soft tissue remains revealed by computed tomography". Swiss Journal of Palaeontology . 140 (1): Article 11. doi: 10.1186/s13358-021-00226-y . hdl: 11336/135617 .
46. Smith, C. P. A.; Landman, N. H.; Bardin, J.; Kruta, I. (2021). "New evidence from exceptionally "well-preserved" specimens sheds light on the structure of the ammonite brachial crown". Scientific Reports. 11 (1): Article number 11862. Bibcode:2021NatSR..1111862S. doi: 10.1038/s41598-021-89998-4 . PMC   8178333 . PMID   34088905.
47. Weinkauf, M. F. G.; Hoffmann, R.; Wiedenroth, K. (2021). "Evolutionary–phylogenetic pathway of the Cretaceous ammonite genus Aegocrioceras and its relationship to Juddiceras spp. and Crioceratites spp". Papers in Palaeontology. 7 (4): 2113–2139. doi: 10.1002/spp2.1397 . S2CID   238723092.
48. Peterman, D. J.; Ritterbush, K. A. (2021). "Vertical escape tactics and movement potential of orthoconic cephalopods". PeerJ. 9: e11797. doi: 10.7717/peerj.11797 . PMC   8288114 . PMID   34316410.
49. Ifrim, C.; Stinnesbeck, W.; González González, A. H.; Schorndorf, N.; Gale, A. S. (2021). "Ontogeny, evolution and palaeogeographic distribution of the world's largest ammonite Parapuzosia (P.) seppenradensis (Landois, 1895)". PLOS ONE. 16 (11): e0258510. Bibcode:2021PLoSO..1658510I. doi: 10.1371/journal.pone.0258510 . PMC   8580234 . PMID   34758037.
50. Machalski, M.; Owocki, K.; Dubicka, Z.; Malchyk, O.; Wierny, W. (2021). "Stable isotopes and predation marks shed new light on ammonoid habitat depth preferences". Scientific Reports. 11 (1): Article number 22730. Bibcode:2021NatSR..1122730M. doi: 10.1038/s41598-021-02236-9 . PMC   8611083 . PMID   34815505.
51. Pérez-Claros, J. A. (2021). "Sutural complexity and body size in Cretaceous ammonoids: macroevolutionary decoupling of correlated features". Cretaceous Research. 132: Article 105120. doi: 10.1016/j.cretres.2021.105120 . hdl: 10630/24004 . S2CID   245422498.
52. Weis, R.; Dzyuba, O. S.; Dietze, V.; Riegraf, W. (2021). "A new belemnite species from the Aalenian of the Swabian Alb (SW Germany) and its position in the phylogeny of Megateuthididae (Belemnitida)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 300 (1): 23–31. doi:10.1127/njgpa/2021/0977. ISSN   0077-7749. S2CID   234855507.
53. Moneer, S. M.; Bazeen, Y. S.; Kassab, W. (2021). "Taxonomy and paleobiogeography of the Maastrichtian cephalopods from the Abu Monqar-west Dakhla stretch, Western Desert, Egypt". Historical Biology. 33 (12): 3530–3541. doi:10.1080/08912963.2021.1876043. S2CID   234799991.
54. Niko, S. (2021). "Late Silurian orthocerid cephalopods from the Suberidani Group, Tokushima Prefecture, Southwest Japan". Bulletin of the Tohoku University Museum. 20: 1–7. hdl:10097/00132016.
55. Kröger, B.; Pohle, A. (2021). "Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen – a pelagic fauna with Laurentian affinities". European Journal of Taxonomy (783): 1–102. doi: 10.5852/ejt.2021.783.1601 .
56. Fuchs, D.; Stinnesbeck, W. (2021). "Large-sized gladius-bearing octobrachians (coleoid cephalopods) in the Turonian plattenkalk of Vallecillo, Mexico". Cretaceous Research. 127: Article 104949. Bibcode:2021CrRes.12704949F. doi:10.1016/j.cretres.2021.104949.
57. Evans, D. H.; Ghobadi Pour, M.; Popov, L. E.; Jahangir, H. (2021). "First report of Mid Ordovician (Darriwilian) cephalopods from the Saluk Mountains, southern Kopet-Dagh Region, north-east Iran". Bulletin of Geosciences. 96 (2): 139–158. doi: 10.3140/bull.geosci.1808 .
58. Dernov, V. S. (2021). "Three new species of nautilids (cephalopods) from the Carboniferous of the Donets Basin (eastern Ukraine)". Geologìčnij žurnal. 2021 (2): 58–66. doi: 10.30836/igs.1025-6814.2021.2.227012 . S2CID   237766813.
59. Brauckmann, C.; Koch, L. (2021). "Nachweise der Nautiloideen-Familie Jovellaniidae im givetischen Massenkalk (Schwelm-Kalk) von Schwelm (Nordrhein-Westfalen)". Dortmunder Beiträge zur Landeskunde - naturwissenschaftliche Mitteilungen. 50: 75–86.
60. Pieroni, V.; Prinoth, H. (2021). "Mojsvaroceras gianii n. sp. and related coiled nautiloids from the Middle Triassic of Lombardy (Northern Italy)". Bollettino della Società Paleontologica Italiana. 60 (2): 99–110. doi:10.4435/BSPI.2021.11 (inactive 2024-11-20).
61. Halder, K. (2021). "Nautiloid Biostratigraphy of the Jurassic of Kutch, India: An Exploration of Bio- and Chrono-stratigraphic Potential of Nautiloids". In S. Banerjee; S. Sarkar (eds.). Mesozoic Stratigraphy of India. Society of Earth Scientists Series. Springer. pp. 291–309. doi:10.1007/978-3-030-71370-6_10. ISBN   978-3-030-71369-0. S2CID   242464491.
62. Fang, X.; Pohle, A.; Kröger, B.; Aubrechtová, M.; Burrett, C.; Zhang, Y.; Zhang, Y. (2021). "Phylogeny of Middle–Late Ordovician lituitid cephalopods based on cladistic analysis". Journal of Systematic Palaeontology. 19 (9): 633–650. doi:10.1080/14772019.2021.1944354. hdl:10138/346432. S2CID   237885587.
63. Hildenbrand, A.; Austermann, G.; Fuchs, D.; Bengtson, P.; Stinnesbeck, W. (2021). "A potential cephalopod from the early Cambrian of eastern Newfoundland, Canada". Communications Biology. 4 (1): Article number 388. doi: 10.1038/s42003-021-01885-w . PMC   7987959 . PMID   33758350. S2CID   232338352.
64. Klug, C.; Pohle, A.; Roth, R.; Hoffmann, R.; Wani, R.; Tajika, A. (2021). "Preservation of nautilid soft parts inside and outside the conch interpreted as central nervous system, eyes, and renal concrements from the Lebanese Cenomanian". Swiss Journal of Palaeontology . 140 (1): Article 15. doi: 10.1186/s13358-021-00229-9 . PMC   8549922 . PMID   34721283.
65. Neige, P.; Weis, R.; Fara, E. (2021). "Ups and downs of belemnite diversity in the Early Jurassic of Western Tethys". Palaeontology. 64 (2): 263–283. Bibcode:2021Palgy..64..263N. doi: 10.1111/pala.12522 .
66. Nätscher, P. S.; Dera, G.; Reddin, C. J.; Rita, P.; De Baets, K. (2021). "Morphological response accompanying size reduction of belemnites during an Early Jurassic hyperthermal event modulated by life history". Scientific Reports. 11 (1): Article number 14480. Bibcode:2021NatSR..1114480N. doi: 10.1038/s41598-021-93850-0 . PMC   8280180 . PMID   34262074.
67. Klug, C.; Di Silvestro, G.; Hoffmann, R.; Schweigert, G.; Fuchs, D.; Clements, T.; Gueriau, P. (2021). "Taphonomic patterns mimic biologic structures: diagenetic Liesegang rings in Mesozoic coleoids and coprolites". PeerJ. 9: e10703. doi: 10.7717/peerj.10703 . PMC   7811783 . PMID   33520466.
68. Mironenko, A. A.; Boiko, M. S.; Bannikov, A. F.; Arkhipkin, A. I.; Bizikov, V. A.; Košťák, M. (2021). "First discovery of the soft-body imprint of an Oligocene fossil squid indicates its piscivorous diet". Lethaia. 54 (5): 793–805. doi:10.1111/let.12440. S2CID   238646997.
69. Klug, C.; Schweigert, G.; Fuchs, D.; De Baets, K. (2021). "Distraction sinking and fossilized coleoid predatory behaviour from the German Early Jurassic". Swiss Journal of Palaeontology . 140 (1): Article 7. doi: 10.1186/s13358-021-00218-y . PMC   7965854 . PMID   33815267. S2CID   232237598.
70. Košťák, M.; Schlögl, J.; Fuchs, D.; Holcová, K.; Hudáčková, N.; Culka, A.; Fözy, I.; Tomašových, A.; Milovský, R.; Šurka, J.; Mazuch, M. (2021). "Fossil evidence for vampire squid inhabiting oxygen-depleted ocean zones since at least the Oligocene". Communications Biology. 4 (1): Article number 216. doi:10.1038/s42003-021-01714-0. PMC   7893013 . PMID   33603225.
71. Klompmaker, A. A.; Landman, N. H. (2021). "Octopodoidea as predators near the end of the Mesozoic Marine Revolution". Biological Journal of the Linnean Society. 132 (4): 894–899. doi: 10.1093/biolinnean/blab001 .
72. Brunetti, M. M.; Cresti, M. (2021). "Tre nuove specie di Gasteropodi per il Pliocene di Orciano Pisano". Bollettino Malacologico. 57 (1): 106–113.
73. Garvie, C. L. (2021). "The macrofauna of the Tehuacana Limestone Member (Danian, Kincaid Formation) of Central Texas, with the Description of a few new taxa from the Pisgah Member". Bulletins of American Paleontology. 399–400 (399–400): 1–292. doi:10.32857/bap.2021.399.01 (inactive 1 November 2024).
74. Karapunar, B.; Nützel, A. (2021). "Slit-band gastropods (Pleurotomariida) from the Upper Triassic St. Cassian Formation and their diversity dynamics in the Triassic". Zootaxa. 5042 (1): 1–165. doi:10.11646/zootaxa.5042.1.1. PMID   34811018. S2CID   244213844.
75. Raven, J. G. M. (2021). "Notes on molluscs from NW Borneo 8. Stromboidea (Gastropoda, Caenogastropoda). Addendum, including the description of two new genera and new extinct species". Vita Malacologica. 20: 23–50.
76. Chirli, C.; Forli, M. (2021). The Family Rissoidae Gray, 1847 from Miocene to Present-day in the Mediterranean Basin. Edizioni Danaus. pp. 1–466. ISBN   978-8-89-760331-3.
77. Gardella, F.; Bertaccini, E.; Bertamini, R.; Bongiardino, C.; Petracci, P.; Tabanelli, C. (2021). "The malacofauna of the "spungone": Alvania cerreti n. sp". Quaderno di Studi e Notizie di Storia Naturale della Romagna. 53: 19–25.
78. Amati, B.; Oliverio, M. (2024). "Alvania pluricosticillata Chirli & Forli, 2021 junior synonym of Crisilla gagliniae (Amati, 1985)". Bollettino Malacologico. 60 (1): 1–4. doi:10.53559/BollMalacol.2023.17.
79. Chernyshev, A. V.; Goedert, J. L. (2021). "New species of latest Eocene/earliest Oligocene microgastropods (Heterobranchia: Orbitestellidae and Omalogyridae) from the Gries Ranch Formation, Lewis County, Washington State, USA". Zootaxa. 4981 (3): 469–480. doi:10.11646/zootaxa.4981.3.3. PMID   34186710. S2CID   235686756.
80. Hausmann, I. M.; Nützel, A.; Roden, V. J.; Reich, M. (2021). "Palaeoecology of tropical marine invertebrate assemblages from the Late Triassic of Misurina, Dolomites, Italy". Acta Palaeontologica Polonica. 66 (1): 143–192. doi: 10.4202/app.00659.2019 .
81. Dharma, B. (2021). "New Species and Subspecies of Recent and Fossil Amphidromus Albers, 1850 from Java and Sumatra (Gastropoda: Camaenidae)". The Festivus. 53 (4): 298–306. doi: 10.54173/F534298 . S2CID   240261318.
82. Kolokotronis, D. (2021). "New records of tropical gastropods from the Pliocene of Nicosia with the description of Anacithara akisi sp. nov. (Gastropoda: Horaiclavidae)". Gloria Maris. 60 (4): 178–183.
83. Harzhauser, M. (2021). "The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda)—a synopsis". Zootaxa. 4902 (1): zootaxa.4902.1.1. doi:10.11646/zootaxa.4902.1.1. PMID   33757113. S2CID   232339137.
84. Harzhauser, M.; Landau, B. (2021). "An overlooked diversity—the Costellariidae (Gastropoda: Neogastropoda) of the Miocene Paratethys Sea". Zootaxa. 4982 (1): 170. doi:10.11646/zootaxa.4982.1.1. ISSN   1175-5326. PMID   34186703. S2CID   235687490.
85. Fehse, D.; Bertaccini, E.; Gardella, F.; Tabanelli, C. (2021). "Revision of the Mediterranean Pliocene Apiocypraea F.A. Schilder, 1925 (Gastropoda: Eocypraeidae) with special consideration of shells of the "Spungone" area, Romagna, Northern Italy". Archiv für Molluskenkunde: International Journal of Malacology. 150 (2): 147–171. doi:10.1127/arch.moll/150/147-171. S2CID   245406059.
86. Lozouet, P. (2021). "Buccinoidea (Mollusca, Gastropoda, Neogastropoda) de l'Oligocène supérieur (Chattien) du bassin de l'Adour (Sud-Ouest de la France)". Cossmanniana. 22: 3–129.
87. Kaim, A.; Little, C. T. S.; Kennedy, W. J.; Mears, E. M.; Anderson, L. M. (2021). "Late Cretaceous hydrothermal vent communities from the Troodos ophiolite, Cyprus: systematics and evolutionary significance" (PDF). Papers in Palaeontology. 7 (4): 1927–1947. doi:10.1002/spp2.1370. S2CID   237895585.
88. Raven, J. G. M. (2021). "Notes on molluscs from nw Borneo 9. Harpidae (Neogastropoda), with the description of Asiaharpa sarawakiana gen. nov., spec. nov". Vita Malacologica. 20: 51–60.
89. Harzhauser, M.; Landau, B. M. (2021). "The Columbellidae (Gastropoda, Buccinoidea) in the Miocene Paratethys Sea—striking diversity of a negelected group". Zootaxa. 5025 (1): 1–75. doi:10.11646/zootaxa.5025.1.1. PMID   34810943. S2CID   238735080.
90. Pacaud, J.-M.; Lhomme, J.-F.; Renaud, G. (2021). "Description d'un nouveau genre et d'une espèce nouvelle d'Hemisinidae (Mollusca, Gastropoda) du Cuisien (Yprésien inférieur) du bassin de Paris". Folia Conchyliologica. 62: 9–14.
91. Lozouet, P. (2021). "Turbinelloidea, Mitroidea, Olivoidea, Babyloniidae et Harpidae (Gastropoda, Neogastropoda) de l'Oligocène supérieur (Chattien) du bassin de l'Adour (Sud-Ouest de la France)". Cossmanniana. 23: 3–69.
92. Raven, J. G. M. (2021). "Notes on molluscs from NW Borneo 7. Babyloniidae (Gastropoda, Neogastropoda)". Vita Malacologica. 20: 14–22.
93. Dovesi, M.; Parsons, J. (2021). "Two new species of Barycypraea (Gastropoda: Cypraeidae) from the Miocene of Java, Indonesia". The Festivus. 53 (2): 116–127. doi: 10.54173/F532116 . S2CID   240518287.
94. Kolokotronis, D. (2021). "Bela pediensis sp. nov.: A new species of Bela (Gastropoda: Mangeliidae) from the Pliocene of Nicosia". Gloria Maris. 60 (3): 128–130.
95. Li, Z.; Li, Y.; Zhang, Y.; Xie, K.; Li, Z. (2021). "New Discovery of Oligocene Gastropod Opercula from the Yehucheng Formation in Northwestern China". Acta Geologica Sinica (English Edition). 96: 61–70. doi:10.1111/1755-6724.14727. S2CID   236413377.
96. Cabrera, F.; Breure, A. S. H.; Norbis, W.; Martínez, S. (2021). "Description of a new Late Cretaceous species of Bulimulus Leach, 1814 (Orthalicoidea: Bulimulidae) using geometric morphometric analysis". Journal of Molluscan Studies . 87 (2): eyab006. doi:10.1093/mollus/eyab006.
97. Balashov, I. A.; Perkovsky, E. E.; Vasilenko, D. V. (2021). "A mid-Cretaceous land snail Burminella artiukhini gen. et sp. nov. from Burmese amber: a "missing link" between Pupinidae and other Cyclophoroidea? (Caenogastropoda)". Cretaceous Research. 127: Article 104941. Bibcode:2021CrRes.12704941B. doi: 10.1016/j.cretres.2021.104941 . ISSN   0195-6671.
98. Forli, M.; Smriglio, C. (2021). "A new species of Tonnoidea Suter, 1813 (Gastropoda Bursidae) for the Italian Pliocene: Bursa transeuntis n. sp". Biodiversity Journal. 12 (2): 483–492. doi: 10.31396/Biodiv.Jour.2021.12.2.483.492 . S2CID   237810888.
99. Powell, C. L.; Houart, R. (2021). "Califrapana: a new genus of California and Bája California late Oligocene to early Miocene muricids previously attributed to the genus Rapana (Mollusca: Gastropoda: Muricidae)". PaleoBios. 38: ucmp_paleobios_52825. doi: 10.5070/P9381052825 . S2CID   236578864.
100. Pieroni, V.; Monari, S.; Todd, J. A. (2021). "A new caenogastropod from the upper Rhaetian of Lombardy: Palaeobiogeographical history and implications for the Early Jurassic gastropod recovery". Acta Palaeontologica Polonica. 66 (1): 193–206. doi: 10.4202/app.00792.2020 .
101. Groh, K. (2021). "Description of a new Canariella P. Hesse, 1918 (Stylommatophora: Canariellidae) from the Quaternary of Furteventura, Canary Islands". Basteria. Journal of the Netherlands Malacological Society. 85 (2): 126–129.
102. Harzhauser, M.; Landau, B. (2021). "The Mitridae (Gastropoda: Neogastropoda) of the Miocene Paratethys Sea". Zootaxa. 4983 (1): 172. doi:10.11646/zootaxa.4983.1.1. PMID   34186702. S2CID   235687636.
103. Vicián, Z.; Kovács, Z. (2021). "Middle Eocene Tonnoidea (Caenogastropoda) from the Hungarian Paleogene Basin". Fragmenta Palaeontologica Hungarica. 37: 13–47. doi:10.17111/FragmPalHung.2021.37.13. S2CID   252349779.
104. Petuch, E. J.; Berschauer, D. P. (2021). "Two new Cassis (Gastropoda: Cassidae) and a new Malea (Gastropoda: Tonnidae) from the Pliocene and Pleistocene Beds of southern Florida". The Festivus. 53 (1): 3–10. doi:10.54173/F531003. S2CID   240504008.
105. Ebbestad, J. O. R.; Cope, J. C. W. (2021). "A low diversity Sinuites gastropod community from the Floian, Early Ordovician, of South Wales". Acta Palaeontologica Polonica. 66 (2): 319–335. doi: 10.4202/app.00854.2020 . S2CID   236651641.
106. Landau, B. M.; Micali, P. (2021). "The Pliocene Gastropoda (Mollusca) of Estepona, southern Spain. Part 13: Murchisonelloidea and Pyramidelloidea". Cainozoic Research. 21 (2): 201–393.
107. Merle, D.; Landau, B. M.; Breitenberger, A. E. (2021). "New Muricidae (Mollusca, Gastropoda) from the Miocene of Java (Indonesia)". Basteria. Journal of the Netherlands Malacological Society. 85 (1): 21–33.
108. Kovács, Z.; Vicián, Z. (2021). "Conoidea (Neogastropoda) assemblage from the Lower Badenian (Middle Miocene) deposits of Letkés (Hungary), Part II. (Borsoniidae, Cochlespiridae, Clavatulidae, Turridae, Fusiturridae)". Földtani Közlöny. 151 (2): 137–158. doi: 10.23928/foldt.kozl.2021.151.2.137 . S2CID   237929980.
109. Psarras, C.; Koskeridou, E.; Merle, D. (2021). "Late Miocene Conidae (Mollusca: Gastropoda) of Crete (Greece). Part 1: genera Conilithes Swainson, 1840 and Conus (Kalloconus) da Motta, 1991". Geodiversitas. 43 (24): 1309–1339. doi: 10.5252/geodiversitas2021v43a24 . S2CID   244932519.
110. Garvie, C. L. (2021). "Eight new species of Eocene Gastropoda from Texas based on the Megahan collection". Proceedings of the Biological Society of Washington. 134 (1): 196–208. doi:10.2988/0006-324X-134.1.196. S2CID   240502013.
111. Pacaud, J.-M. (2021). "Remarques taxonomiques et nomenclaturales sur les mollusques gastéropodes du Paléogène de France et description d'espèces nouvelles. Partie 3. Conoidea". Xenophora Taxonomy. 31: 41–48. Archived from the original on 2021-02-21. Retrieved 2021-01-23.
112. Brunetti, M. M.; Forli, M. (2021). "Some notes on the Genus Crassispira Swainson, 1840 (Gastropoda: Pseudomelatomidae) with the description of two new species from the Italian and Spanish Pliocene". Bollettino Malacologico. 57 (2): 182–191.
113. Yu, T.; Salvador, R.; Jarzembowski, E. A. (2021). "New terrestrial gastropods of Pupinidae and Diplommatinidae (Cyclophoroidea) from mid-Cretaceous Burmese amber". Cretaceous Research. 124: Article 104828. Bibcode:2021CrRes.12404828Y. doi:10.1016/j.cretres.2021.104828. S2CID   233682256.
114. Jochum, A.; Yu, T.; Neubauer, T. A. (2021). "Mother snail labors for posterity in bed of mid-Cretaceous amber". Gondwana Research. 97: 68–72. Bibcode:2021GondR..97...68J. doi: 10.1016/j.gr.2021.05.006 .
115. Jiang, R.; Shi, C.; Zhang, H.; Cai, H.; Long, X.; Wang, S.; Engel, M. S. (2022). "Comment on "Mother snail labors for posterity in bed of mid-Cretaceous amber" by A. Jochum, T. Yu and T.A. Neubauer, Gondwana Research, Volume 97, Pages 68–72". Gondwana Research. 101: 21–23. Bibcode:2022GondR.101...21J. doi:10.1016/j.gr.2021.07.015. ISSN   1342-937X.
116. Jochum, A.; Yu, T.; Neubauer, T. A. (2021). "Reply to Jiang et al.'s comments on the article "Mother snail labors for posterity in bed of mid-Cretaceous amber" by Jochum, Yu and Neubauer (2021) Gondwana Research 97, 68–72". Gondwana Research. 101: 24–25. doi: 10.1016/j.gr.2021.07.016 . ISSN   1342-937X.
117. Yu, T.; Wang, H.; Fang, Y.; Salvador, R. B.; Li, S.; Jarzembowski, E. A.; Yu, H.; Zhang, H. (2021). "Non-marine gastropods from the Cretaceous–Paleogene transition in the Pingyi Basin, eastern China". Proceedings of the Geologists' Association. 133: 40–46. doi:10.1016/j.pgeola.2021.10.003. S2CID   244516164.
118. Groves, L. T.; Landau, B. M. (2021). "Neogene paleontology in the northern Dominican Republic. 25. The Superfamily Cypraeoidea (Families Cypraeidae, Ovulidae, Triviidae, and Eratoidae) (Mollusca: Gastropoda)". Bulletins of American Paleontology. 401 (401): 1–110. doi: 10.32857/bap.2021.401.01 .
119. Kawase, M.; Ichihara, T. (2021). "A new species of Ellobium (Gastropoda: Panpulmonata: Ellobiidae) from the Miocene Mizunami Group in Gifu Prefecture, central Japan". Bulletin of the Mizunami Fossil Museum. 48: 1–7. doi:10.50897/bmfm.48.0_1.
120. Bose, K.; Das, S. S.; Mondal, S. (2021). "An updated generic classification of Cenozoic pleurotomariid gastropods, with new records from the Oligocene and early Miocene of India". Journal of Paleontology. 95 (4): 763–776. Bibcode:2021JPal...95..763B. doi:10.1017/jpa.2021.4. ISSN   0022-3360. S2CID   233801673.
121. Fehse, D. (2021). "Zur Identität von Eotrivia faracii (de Gregorio, 1880) und Beschreibung einer neuen Art in der Gattung Eotrivia F. A. Schilder, 1924 (Mollusca, Gastropoda)". Conchylia. 52 (1–2): 79–84.
122. Pacaud, J.-M. (2021). "Description d'une espèce nouvelle de Mitridae (Mollusca, Gastropoda) du Priabonien (Éocène superieur) de Dnipro (Oblast de Dnipropetrovsk, Ukraine)". Belokrysia. 3: 1–11.
123. Balashov, I. (2021). "The first records of mollusks from mid-Cretaceous Hkamti amber (Myanmar), with the description of a land snail, Euthema myanmarica n. sp. (Caenogastropoda, Cyclophoroidea, Diplommatinidae)". Journal of Paleontology. 95 (5): 994–1003. Bibcode:2021JPal...95..994B. doi:10.1017/jpa.2021.26. S2CID   233690461.
124. Yu, T.; Neubauer, T. A.; Jochum, A. (2021). "First freshwater gastropod preserved in amber suggests long-distance dispersal during the Cretaceous Period". Geological Magazine. 158 (7): 1327–1334. Bibcode:2021GeoM..158.1327Y. doi:10.1017/S0016756821000285. S2CID   235529278.
125. Spadini, V. (2021). "The genus Gibbula Risso, 1826 (Trochidae: Cantharidinae) from the Pliocene of Siena". Bollettino Malacologico. 57 (1): 82–91.
126. Harzhauser, M.; Neubauer, T. A. (2021). "A review of the land snail faunas of the European Cenozoic – composition, diversity and turnovers". Earth-Science Reviews. 217: Article 103610. Bibcode:2021ESRv..21703610H. doi:10.1016/j.earscirev.2021.103610. S2CID   233835790.
127. Mazaev, A. V. (2021). "Lower Carboniferous Gastropods of Dombar Hills (Viséan–Serpukhovian Boundary Beds, Western Kazakhstan)". Paleontological Journal. 55 (8): 876–905. doi:10.1134/S0031030121080049. S2CID   245330703.
128. Yu, T. (2021). "New data on gastropod genus Hirsuticyclus (Caenogastropoda, Cyclophoridae) from mid-Cretaceous Kachin amber". In S-C. Chang; D. Zheng (eds.). Mesozoic Biological Events and Ecosystems in East Asia. Vol. 521. The Geological Society of London. pp. 153–160. doi:10.1144/SP521-2021-127. S2CID   244091697.{{cite book}}: |journal= ignored (help)
129. Yu, T.; Neubauer, T. A. (2021). "The oldest fossil Hydrocenidae found in mid-Cretaceous Burmese amber (Gastropoda: Cycloneritida)". Cretaceous Research. 122: Article 104765. Bibcode:2021CrRes.12204765T. doi:10.1016/j.cretres.2021.104765. S2CID   233585283.
130. Pacaud, J.-M.; Goret, B. (2021). "Description d'une espèce nouvelle de Jponsia Pacaud & Harzhauser, 2012 (Mollusca, Gastropoda, Pachychilidae) de l'Ilerdien (Yprésien inférieur) du bassin de Tremp (Espagne)". Folia Conchyliologica. 60: 9–18. Archived from the original on 2021-02-21. Retrieved 2021-02-20.
131. Fehse, D.; Vicián, Z. (2021). "Contributions to the knowledge of the Triviidae. XLII: The Genus Laevitrivia n. gen". Conchylia. 52 (1–2): 55–78.
132. Hawke, A. L. (2021). "New Species of Nannamoria from the Pliocene and Miocene of Australia (Caenogastropoda: Volutidae)". The Festivus. 53 (4): 245–260. doi: 10.54173/F534245 . S2CID   240263447.
133. Fehse, D.; Vicián, Z. (2021). "New Miocene Cypraeids (Mollusca: Gastropoda: Cypraeidae) from Indonesia". Conchylia. 51 (3–4): 35–53.
134. Mazaev, A. V. (2021). "Revision of the gastropod family Gosseletinidae Wenz: genera Gosseletina Fischer, 1885, Globodoma Mazaev, 2006, and Nemaspira gen. nov". Paleontological Journal. 55 (6): 600–607. Bibcode:2021PalJ...55..600M. doi:10.1134/S0031030121060071. S2CID   245010385. Archived from the original on 2021-10-28. Retrieved 2021-10-15.
135. Biskupič, K. (2021). "A new species of Nitidiclavus (Neogastropoda: Drilliidae) from the Miocene Paratethys and an overview of the paleoecology and distribution of related species in the Cainozoic of Europe". Basteria. Journal of the Netherlands Malacological Society. 85 (2): 163–176.
136. Fehse, D. (2021). "Contributions to the knowledge of the Triviidae. XLI: The Mystery of Oligocene Triviidae". Conchylia. 52 (1–2): 43–54.
137. Dominici, S.; Forli, M. (2021). "Lower Pliocene molluscs from southern Tuscany (Italy)". Bollettino della Società Paleontologica Italiana. 60 (1): 69–98. doi:10.4435/BSPI.2021.04 (inactive 2024-11-20).
138. Frese, M.; Ponder, W. (2021). "Proviviparus talbragarensis gen. et sp. nov., the first viviparid snail from the Late Jurassic of Australia". Alcheringa: An Australasian Journal of Palaeontology. 45 (3): 344–353. Bibcode:2021Alch...45..344F. doi:10.1080/03115518.2021.1940276. S2CID   238777174.
139. Gründel, J.; Davies, P. G.; Simonsen, S. (2021). "The genus Pseudokatosira Nützel & Gründel, 2007 (Gastropoda: Caenogastropoda) in the European Jurassic" (PDF). Paläontologie, Stratigraphie, Fazies. (26), Freiberger Forschungshefte, C 559: 1–16.
140. Kovács, Z. (2021). "Middle Miocene Buccinoidea (Neogastropoda) assemblage from the Făget Basin (Romania) in the collection of the Hungarian Natural History Museum, Budapest". Fragmenta Palaeontologica Hungarica. 37: 65–99. doi:10.17111/FragmPalHung.2021.37.65. S2CID   252346302.
141. Harzhauser, M.; Landau, B. M.; Vermeij, G. J. (2024). "The Dolicholatiridae and Fasciolariidae (Gastropoda, Buccinoidea) of the Miocene Paratethys Sea". Zootaxa. 5470 (1): 1–92. doi:10.11646/zootaxa.5470.1.1.
142. Maxwell, S. J.; Rymer, T. L.; Congdon, B. C. (2021). "Resolving phylogenetic and classical nomenclature: A revision of Seraphsidae Jung, 1974 (Gastropoda: Neostromboidae)". Zootaxa. 4990 (3): 401–453. doi:10.11646/zootaxa.4990.3.1. PMID   34186750. S2CID   235686526.
143. Tabanelli, C.; Bertaccini, E.; Bertamini, R.; Bongiardino, C.; Gardella, F.; Petracci, P. (2021). "The malacofauna of the "spungone". Pyrgiscus elegans n. sp. (Mollusca: Gastropoda: Heterobranchia: Pyramidellidae)". Quaderno di Studi e Notizie di Storia Naturale della Romagna. 54: 31–37.
144. Kovács, Z.; Vicián, Z. (2021). "New Cancellariidae (Neogastropoda) assemblages from the Middle Miocene of Hungary with description of a new species". Central European Geology. 64 (2): 59–73. Bibcode:2021CEJGl..64...59K. doi: 10.1556/24.2020.00006 . hdl: 10831/82983 .
145. Petuch, E. J.; Berschauer, D. P. (2021). "New fossil scaphelline volutes from the Pliocene of southern Florida". The Festivus. 53 (2): 101–108. doi: 10.54173/F532101 . S2CID   240548109.
146. Landau, B. M.; da Silva, C. M. (2021). "The genus Sveltia (Gastropoda, Cancellariidae) in the Atlantic Pliocene of Iberia with a new species from the Cenozoic Mondego Basin of Portugal". Journal of Paleontology. 96: 143–151. doi:10.1017/jpa.2021.83. S2CID   246488911.
147. Sanfilippo, R.; Kočí, T.; Bosio, G.; Collareta, A.; Ekrt, B.; Malinverno, E.; Di Celma, C.; Urbina, M.; Bianucci, G. (2021). "An investigation of vermetid reefs from the Miocene of Peru, with the description of a new species". Journal of South American Earth Sciences. 108: Article 103233. Bibcode:2021JSAES.10803233S. doi:10.1016/j.jsames.2021.103233. S2CID   233920362.
148. Yu, T.; Salvador, R. B.; Wang, H.; Fang, Y.; Neubauer, T. A.; Li, S.; Zhang, H.; Wan, X. (2021). "A latest Cretaceous gastropod fauna from the Jiaolai Basin of East Asia". Cretaceous Research. 121: Article 104736. Bibcode:2021CrRes.12104736Y. doi:10.1016/j.cretres.2020.104736. S2CID   233547414.
149. Tomida, S.; Sano, H.; Kase, T. (2021). "An Additional New Species of Turbo (Marmarostoma) (Gastropoda: Turbinidae) from the Middle Miocene of the Izu Peninsula, Central Japan". Paleontological Research. 25 (4): 375–378. doi:10.2517/2021PR006. S2CID   238861250.
150. Southgate, P. C.; Militz, T. A.; Roberts, M. (2021). "A new species of Umbilia Jousseaume, 1884 (Mollusca: Cypraeidae) from the Australian Pliocene". Molluscan Research. 41 (3): 214–221. doi:10.1080/13235818.2021.1962588. S2CID   238231852.
151. Schnetler, K. I.; Nielsen, M. S. (2021). "On the genus Vanikoropsis Meek, 1876 (Gastropoda, Caenogastropoda) from the Paleocene of Denmark and West Greenland with descriptions of three new species". Bulletin of the Geological Society of Denmark. 69: 215–232. doi: 10.37570/bgsd-2021-69-09 . S2CID   245577704.
152. Metelkin, E. K.; Kosenko, I. N. (2021). "Aptian-Albian oysters from the southwestern spurs of the Gissar Ridge. Part 1. Genus Amphidonte Fischer de Waldheim". Paleontological Journal. 55 (6): 608–617. doi:10.1134/S0031030121060083. S2CID   245010332.
153. Cooper, M. R.; Leanza, H. A. (2021). "On the Buchotrigoniidae (Cretaceous Trigoniida), their palaeobiogeography, evolution and classification". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 301 (2): 119–134. doi:10.1127/njgpa/2021/0999. S2CID   238736681.
154. Ceccolini, F.; Cianferoni, F. (2021). "Five replacement names for fossil bivalve genera (Mollusca: Bivalvia)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 302 (2): 231–234. doi:10.1127/njgpa/2021/1025. ISSN   0077-7749. S2CID   243903591.
155. Cooper, M. (2021). "On the Apiotrigoniinae (Bivalvia, Trigoniida): their palaeobiogeography, evolution and classification". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 300 (2): 145–174. doi:10.1127/njgpa/2021/0982. S2CID   242113854.
156. Berezovsky, A. A. (2021). "New species of Chama (Bivalvia) from the middle Eocene of southern Ukraine". Paleontological Journal. 55 (4): 378–383. doi:10.1134/S0031030121040031. S2CID   237378531.
157. Jaitly, A. K.; Kumar, S.; Pandey, B.; Gautam, J. P.; Tiwari, D. N. (2021). "Turonian (Late Cretaceous) Heterodont Subfamilies: Lucininae, Eriphylinae and Opinae (Bivalvia: Veneroida) from the Narmada Basin, central India". Journal of the Palaeontological Society of India. 66 (2): 336–345. doi:10.1177/0971102320210217.
158. Waterhouse, J. B. (2021). "Species of the bivalve Eurydesma Morris in east Australia". Macro-faunal biozones from the early marine Permian of East Australia and New Zealand, with description of some Australian faunas (PDF). Earthwise. Vol. 19. pp. 57–103.
159. Berezovsky, A. A. (2021). "New species of Cardiidae (Bivalvia) from the Eocene of Ukraine". Paleontological Journal. 55 (1): 18–28. doi:10.1134/S0031030121010044. S2CID   232070780 . Retrieved 2021-01-12.
160. Echevarría, J.; Damborenea, S. E.; Manceñido, M. O. (2021). "Early Jurassic Trigoniida (Bivalvia) from Argentina". Journal of Paleontology. 95 (Supplement S85): 1–55. Bibcode:2021JPal...95..763B. doi:10.1017/jpa.2021.4. ISSN   0022-3360. S2CID   238715559.
161. Biakov, A. S.; Danukalova, M. K.; Kuzmichev, A. B.; Sobolev, E. S. (2021). "Permian bivalves of the Pronchishchev Ridge (North Siberia): new data on taxonomic composition, biostratigraphy, and biogeographic relationships". Paleontological Journal. 55 (3): 259–271. doi:10.1134/S0031030121030084. S2CID   235966259.
162. Castañeda-Posadas, C.; Trujillo-Hernández, A.; Zúñiga-Mijangos, L. A. (2021). "Especie nueva del género Martesia (Bivalvia: Pholadidae) incluida en el ámbar de Chiapas como indicador de un ambiente estuarino". Revista Mexicana de Biodiversidad. 92: e923600. doi: 10.22201/ib.20078706e.2021.92.3600 .
163. Scholze, F.; Gess, R. W. (2021). "Late Devonian non-marine Naiadites devonicus nov. sp. (Bivalvia: Pteriomorphia) from the Waterloo Farm Lagerstätte in South Africa". Geobios. 69: 55–67. Bibcode:2021Geobi..69...55S. doi:10.1016/j.geobios.2021.07.002. S2CID   238797443.
164. Halder, K.; Mitra, A. (2021). "Facultative monogamy in an early Eocene brooding oyster and its evolutionary implications". Acta Palaeontologica Polonica. 66 (3): 647–662. doi: 10.4202/app.00863.2020 .
165. Bolotov, I. N.; Aksenova, O. V.; Vikhrev, I. V.; Konopleva, E. S.; Chapurina, Y. E.; Kondakov, A. V. (2021). "A new fossil piddock (Bivalvia: Pholadidae) may indicate estuarine to freshwater environments near Cretaceous amber-producing forests in Myanmar". Scientific Reports. 11 (1): Article number 6646. Bibcode:2021NatSR..11.6646B. doi:10.1038/s41598-021-86241-y. PMC   7988128 . PMID   33758318.
166. Peel, J. S.; Skovsted, C. B. (2021). "Lower Cambrian (Series 2) small shelly fossils from along Nares Strait (Nunavut and Greenland; Laurentia)". Canadian Journal of Earth Sciences. 58 (6): 495–504. Bibcode:2021CaJES..58..495P. doi:10.1139/cjes-2020-0167. S2CID   236545098.
167. Dalenz Farjat, A. (2021). "Silurian and Devonian Modiomorphidae bivalves from Bolivia". Ameghiniana. 58 (3): 242–271. doi:10.5710/AMGH.07.01.2021.3400. S2CID   234229534.
168. Fukuda, H.; Ishida, S.; Watanabe, T.; Yoshimatsu, S.; Haga, T. (2021). "The bivalve genus Sunetta Link, 1807 (Heterodonta: Veneridae) of Japan and the neighbouring waters – a taxonomic revision with the descriptions of three new species". Molluscan Research. 41 (2): 107–171. doi:10.1080/13235818.2021.1937016. S2CID   236520379.
169. Brunetti, M. M.; Cresti, M. (2021). "Syndesmyella pliominor n. sp. (Bivalvia: Semelidae) per il Pliocene spagnolo". Bollettino Malacologico. 57 (1): 92–96.
170. Echevarría, J.; Damborenea, S. E.; Manceñido, M. O. (2021). "Early Jurassic Trigoniida (Bivalvia) from Argentina - Addendum". Journal of Paleontology. 95 (Supplement S85): 56. Bibcode:2021JPal...95S..56E. doi:10.1017/jpa.2021.97. S2CID   244230211.
171. Amano, K.; Haga, T. (2021). "A new Miocene Tindaria (Bivalvia: Tindariidae) from central Honshu, Japan". The Nautilus. 135 (3–4): 84–88.
172. Alvarez, M. J.; del Río, C. J. (2021). "A new veneroid genus (Mollusca: Bivalvia) of the Danian of Patagonia (Chubut Province, Argentina)". Ameghiniana. 58 (2): 112–121. doi:10.5710/AMGH.04.01.2021.3377. ISSN   0002-7014. S2CID   234152656.
173. Biakov, A. S.; Kutygin, R. V. (2021). "First record of the genus Unionites Wissmann (Bivalvia) in the Boreal Permian of northeast Russia". Paleontological Journal. 55 (4): 372–377. doi:10.1134/S0031030121040055. S2CID   237377742.
174. Mitchell, S. F. (2021). "Rudist bivalves (Hippuritoidea) from the Clifton Limestone (Lower Campanian) of western Jamaica and a reassessment of the genus Vaccinites in the Americas". Carnets de Géologie. 21 (14): 315–341. doi:10.2110/carnets.2021.2114. S2CID   235802666.
175. Damborenea, S.; Blodgett, R. B.; Hodges, M. S.; Hodges, C. L. (2021). "Weyla santuccii n. sp. (Bivalvia, Pectinidae) from the Pogibshi Formation, south-central Alaska, the oldest species known of the genus in western North America". New Mexico Museum of Natural History and Science Bulletin. 82: 57–70.
176. Zhang, R.; Niu, Z.; Li, C.; Wang, Z.; Song, F.; He, Y.; Yang, W.; Lin, X. (2021). "Yunannioidea—a new superfamily of Pteriomorphids (Bivalvia) from the Middle Ordovician, Yunkai Area, western Guangdong, South China". Acta Palaeontologica Sinica. 60 (3): Article 2020026. doi:10.19800/j.cnki.aps.2020026.
177. Chen, F.; Xue, W.; Yan, J.; Meng, Q. (2021). "The implications of the giant bivalve family Alatoconchidae for the end-Guadalupian (Middle Permian) extinction event". Geological Journal. 56 (12): 6073–6087. doi:10.1002/gj.4151. S2CID   234815123.
178. Hickman, C. S. (2021). "Arcoid bivalve biodiversity during Eocene doubthouse cooling: Contrasting the active Cascadia Margin coldspot with the intracratonic Paris Basin hotspot". PaleoBios. 38: ucmp_paleobios_55236. doi: 10.5070/P938055236 . S2CID   244410822.
179. Peel, J. S. (2021). "An outer shelf shelly fauna from Cambrian Series 2 (Stage 4) of North Greenland (Laurentia)". Journal of Paleontology. 95 (Supplement S83): 1–41. Bibcode:2021JPal...95S...1P. doi: 10.1017/jpa.2020.112 . S2CID   233301947.
180. Peel, J. S.; Kouchinsky, A. (2022). "Middle Cambrian (Miaolingian Series, Wuliuan Stage) molluscs and mollusc-like microfossils from North Greenland (Laurentia)". Bulletin of the Geological Society of Denmark. 70: 69–104. doi: 10.37570/bgsd-2022-70-06 . S2CID   248357305.
181. Zhang, Y.; Liu, Y.; Shao, T.; Wang, Q.; Qin, J.; Zhang, W.; Liang, T. (2021). "New Maikhanellids from the Early Cambrian Strata of Zhangjiagou Section, South Shaanxi, China". Acta Geologica Sinica (English Edition). in press. doi:10.1111/1755-6724.14726. S2CID   236414682.
182. Sirenko, B. I. (2021). "First Paleocene Lepidozona (Mollusca: Polyplacophora: Chitonida) from Ukraine". Proceedings of the Zoological Institute of the Russian Academy of Sciences. 325 (4): 379–383. doi: 10.31610/trudyzin/2021.325.4.379 . S2CID   245517123.
183. Asato, K.; Kase, T. (2021). "Gigantic scaphopods (Mollusca) from the Permian Akasaka Limestone, central Japan". Journal of Paleontology. 95 (4): 748–762. Bibcode:2021JPal...95..748A. doi:10.1017/jpa.2021.3. S2CID   233649005.
184. Guzhov, A. V. (2021). "A new genus of Scaphopoda from the Lower Cretaceous of the Volga Region (Russia)". Paleontological Journal. 55 (2): 137–140. doi:10.1134/S0031030121020064. S2CID   233746746 . Retrieved 2021-02-20.
185. Peel, J. S. (2021). "Pseudomyona from the Cambrian of North Greenland (Laurentia) and the early evolution of bivalved molluscs". Bulletin of Geosciences. 96 (2): 195–215. doi: 10.3140/bull.geosci.1827 .
186. Li, L.; Skovsted, C. B.; Dai, T.; Yun, H.; Fu, D.; Zhang, X. (2021). "Qingjianglepas from the Qingjiang biota, an evolutionary dead-end of Cambrian helcionelloid mollusks?". Palaeogeography, Palaeoclimatology, Palaeoecology. 575: Article 110480. Bibcode:2021PPP...57510480L. doi:10.1016/j.palaeo.2021.110480. S2CID   236244775.
187. Boag, T. H.; Gearty, W.; Stockey, R. G. (2021). "Metabolic tradeoffs control biodiversity gradients through geological time". Current Biology. 31 (13): 2906–2913.e3. doi: 10.1016/j.cub.2021.04.021 . PMID   33961786. S2CID   233998188.
188. Womack, T. M.; Crampton, J. S.; Hannah, M. J.; Collins, K. S. (2021). "A positive relationship between functional redundancy and temperature in Cenozoic marine ecosystems". Science. 373 (6558): 1027–1029. Bibcode:2021Sci...373.1027W. doi:10.1126/science.abf8732. PMID   34446605. S2CID   237308691.