2024 in paleoichthyology

List of years in paleoichthyology
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This list of fossil fish research presented in 2024 is a list of new fossil taxa of jawless vertebrates, placoderms, cartilaginous fishes, bony fishes, and other fishes that were described during the year, as well as other significant discoveries and events related to paleoichthyology that occurred in 2024.

Jawless vertebrates

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Caeruleum gracilis [1]	Sp. nov	Valid	Huang et al.	Early Cretaceous	Jiufotang Formation	China	A lamprey.
Changxingaspis nianzhongi [2]	Sp. nov	Valid	Li et al.	Silurian	Tataertag Formation	China	A member of Galeaspida belonging to the family Xiushuiaspidae.

Jawless vertebrate research

• A study on the evolutionary history of hagfishes, as indicated by the fossil record and molecular data, is published by Brownstein & Near (2024), who consider the hagfish crown group to be a lineage with Early Permian origin and a long history in continental slope settings. ^[3]
• Brookfield (2024) interprets Jamoytius kerwoodi as a probable detritivore or herbivore feeding on Dictyocaris (interpreted by the author as possible algal thalli). ^[4]
• Description of the feeding apparatus of Rhinopteraspis dunensis , interpreted as composed of 13 plates that were capable of rotating around the transverse axis, is published by Dearden et al. (2024), who interpret R. dunensis as a suspension or deposit feeder. ^[5]
• Shan et al. (2024) describe new fossil material of "Dongfangaspis" qujingensis and Damaspis vartus from the Devonian Xishancun Formation (China), and reinterpret "D." qujingensis as a member of the genus Damaspis . ^[6]

Placoderms

Placoderm research

• Jobbins et al. (2024) describe new fossil material of Alienacanthus malkowskii , providing evidence of elongation of the lower jaw which was twice as long as the skull. ^[7]

Cartilaginous fishes

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Aellopobatis [8]	Gen. et sp. nov	Valid	Türtscher et al.	Late Jurassic (Tithonian)		Germany	A member of Batomorphii belonging to the family Spathobatidae. The type species is A. bavarica.
Amtaaguar [9]	Gen. et comb. nov		De Pasqua et al.	Neogene		Argentina   France   United States	An eagle ray. The type species is "Myliobatis" crassus (Gervais, 1859).
Belgabatis [10]	Gen. et comb. nov	Valid	Reinecke et al.	Paleogene		Belgium	A dasyatoid batomorph. The type species is "Dasyatis" thierryi Smith (1999).
Casierabatis [10]	Gen. et sp. comb. nov	Valid	Reinecke et al.	Paleogene		Belgium	A dasyatoid batomorph. Genus includes new species C. lambrechtsi, as well as "Trygon" jaekeli Leriche (1905).
Centrodeania [11]	Gen. et 2 sp. nov	Valid	Feichtinger et al.	Paleocene (Danian)	Oiching Formation	Austria	A member of the family Centrophoridae. The type species is C. rugosa; genus also includes C. annae.
Columnaodus [12]	Gen. et sp. nov	Valid	Cicimurri et al.	Carboniferous (Mississippian)	Contact horizon between Burlington and Keokuk Limestones	United States (  Illinois   Iowa)	A member of Hybodontoidea of uncertain affinities. The type species is C. witzkei.
Cosmoselachus [13]	Gen. et sp. nov	Valid	Bronson et al.	Carboniferous (Mississippian)	Fayetteville Shale	United States (  Arkansas)	A member of the family Falcatidae. The type species is C. mehlingi.
Essexraja [10]	Gen. et sp. nov	Valid	Reinecke et al.	Eocene	London Clay	United Kingdom	A batomorph. The type species is E. ypresiensis.
Eurasiabatis [10]	Gen. et sp. nov	Valid	Reinecke et al.	Paleogene	Tielt Formation	Belgium	A batomorph. The type species is E. occlusostriata.
Glaucopristis [10]	Gen. et comb. nov	Valid	Reinecke et al.	Paleogene		Belgium	A rhinopristiform batomorph. The type species is "Rhinobatus" bruxelliensis Jaekel (1894).
Glikmanius careforum [14]	Sp. nov	Valid	Hodnett et al.	Carboniferous (Mississippian)		United States (  Alabama   Kentucky)
Gyracanthides riniensis [15]	Sp. nov	Valid	Gess & Burrow	Devonian (Famennian)	Waterloo Farm lagerstätte	South Africa	A gyracanthid acanthodian.
Gyracanthus? jasperi [16]	Sp. nov	Valid	Snyder, Burrow & Turner	Carboniferous (Mississippian)	Ste. Genevieve Formation	United States (  Iowa)	A gyracanthid acanthodian.
Heterodontus adneti [17]	Sp. nov	Valid	Migom	Eocene		France	A bullhead shark.
Incognitorapax [11]	Gen. et sp. nov	Valid	Feichtinger et al.	Late Cretaceous (Maastrichtian) and Paleocene (Danian)		Austria   Germany	A member of the family Etmopteridae. The type species is I. fernsebneri.
Orthacanthus adamas [18]	Nom. nov	Valid	Babcock	Carboniferous	Upper Freeport Coal	United States (  Ohio)	A replacement name for Orthacanthus gracilis Newberry (1875).
Orthacanthus lintonensis [18]	Nom. nov	Valid	Babcock	Carboniferous	Upper Freeport Coal	United States (  Ohio)	A replacement name for Diplodus gracilis Newberry (1857).
Palaeohypotodus bizzocoi [19]	Sp. nov	Valid	Ebersole, Cicimurri & Harrell	Paleocene (Danian)	Porters Creek Formation	United States (  Alabama)	A member of Lamniformes belonging to the family Jaekelotodontidae.
Parvodus ominechonensis [20]	Sp. nov	Valid	Breeden et al.	Late Triassic (Carnian)	Momonoki Formation	Japan	A lonchidiid hybodontiform.
Pteroscyllium downesi [21]	Sp. nov	Valid	Duffin & Batchelor	Early Cretaceous (Aptian)	Atherfield Clay Formation	United Kingdom	A carcharhiniform shark with affinities with catsharks.
Scyliorhinus alaformis [11]	Sp. nov	Valid	Feichtinger et al.	Paleocene (Danian)	Oiching Formation	Austria	A species of Scyliorhinus .
Serratodasyatis [10]	Gen. et comb. nov	Valid	Reinecke et al.	Paleogene		Belgium	A dasyatoid batomorph. The type species is "Dasyatis" tricuspidatus Casier (1946).
Sheppeytrygon [10]	Gen. et comb. nov	Valid	Reinecke et al.	Eocene	London Clay	United Kingdom	A dasyatoid batomorph. The type species is "Dasyatis" davisi Casier (1966).
Troglocladodus [14]	Gen. et sp. nov	Valid	Hodnett et al.	Carboniferous (Mississippian)		United States (  Alabama   Kentucky)	A ctenacanthid. Genus includes T. trimblei.
Vectiscyllium [21]	Gen. et sp. nov	Valid	Duffin & Batchelor	Early Cretaceous (Aptian)	Atherfield Clay Formation	United Kingdom	A carcharhiniform shark with affinities with catsharks. The type species is V. atherfieldensis.
Xampylodon diastemacron [22]	Sp. nov		Dos Santos et al.	Late Cretaceous (Maastrichtian)	Lopez de Bertodano Formation	Antarctica	A cow shark.

Cartilaginous fish research

• Schnetz et al. (2024) study the completeness of the Paleozoic fossil record of chondrichthyans, finding it to be significantly lower compared to other investigated vertebrate groups. ^[23]
• A study on the diversification of chondrichthyans throughout the Paleozoic is published by Schnetz et al. (2024), who report evidence indicative of two increases of diversification rates in the earliest Devonian and in the earliest Carboniferous,and of dispersal into deeper-water environments in the aftermath of the Hangenberg event. ^[24]
• A diverse assemblage of cartilaginous fish fossils is described from the Eocene Osinovaya Formation (Rostov Oblast, Russia) by Popov et al. (2024). ^[25]
• A study on the anatomy of the pharynx of Acanthodes confusus , providing evidence of the presence of a mixture of characters seen in cartilaginous and bony fish, is published by Dearden, Herrel & Pradel (2024). ^[26]
• The oldest fossil material of members of the genus Strophodus from Gondwana reported to date is described from the ?Early to Middle Jurassic succession of Kachchh Basin (India) by Bhosale et al. (2024). ^[27]
• Cuny & Chanthasit (2024) describe egg capsules of Palaeoxyris sp. from the Jurassic Phu Kradung Formation (Thailand), interpreted as indicating that at least some hybodont sharks in Jurassic Thailand reproduced in fresh waters. ^[28]
• A study on the evolutionary history of selachians (modern sharks) is published by Sternes, Schmitz & Higham (2024), who argue that modern sharks expanded to the pelagic realm no later than the Barremian, that habitat influenced the morphology of their pectoral fins, and that the increase of sea surface temperature in the middle of the Cretaceous period was an important factor in driving the evolution of shark ecology and morphology. ^[29]
• The first fossil material of a member of the wobbegong genus Cederstroemia from Asia reported to date is described from the Santonian Kashima Formation (Japan) by Kaneko & Solonin (2024). ^[30]
• Vullo et al. (2024) describe new fossil material of Ptychodus from the Upper Cretaceous strata in Mexico, providing evidence that Ptychodus was a high-speed mackerel shark that likely fed on nektonic hard-shelled prey such as ammonites and sea turtles. ^[31]
• Shimada et al. (2024) describe two isolated teeth of Megalolamna paradoxodon from the Miocene Calvert Formation (Maryland, United States), representing the northernmost record of Megalolamna reported to date, and a tooth from the Oligocene Chandler Bridge Formation (South Carolina, United States) which might represent the geologically oldest record of a member of the genus Megalolamna reported to date. ^[32]
• Sternes et al. (2024) reevaluate the accuracy of the body form of Otodus megalodon inferred by Cooper et al. (2022), ^[33] compare an incomplete vertebral column of a specimen of O. megalodon from the Miocene of Belgium with corresponding parts of the vertebral columns of extant white sharks, and argue that O. megalodon had an elongated body relative to the body of the white shark. ^[34]
• Paredes-Aliaga & Herraiz (2024) compare tooth microwear of the Miocene Otodus megalodon and the Pliocene great white shark from Spain, and interpret the two species as likely competing for similar prey, with the tooth wear of the great white shark possibly indicating the preference for a slightly more abrasive diet. ^[35]
• The first fossil tooth of a shark (great white shark) embedded in a seal bone reported to date is described from the Peace River Formation (Florida, United States) by Godfrey et al. (2024). ^[36]
• Greenfield (2024) coins the name Arthrobatidae as a replacement for the invalid name of the possible batomorph family Arthropteridae. ^[37]
• Kocsis (2024) reviews the fossil record of Elasmobranchii from the Malay Archipelago and describes new fossils of elasmobranchs from the Miocene strata in Brunei and from the Sibuti Formation (Sarawak, Malaysia), including the first fossils of Chiloscyllium sp., cf. Hemitriakis sp., Paragaleus sp., the Borneo shark, the blacktip shark, Lamiopsis sp., Scoliodon sp. and Rhinobatos sp. from the Malay Archipelago reported to date. ^[38]

Ray-finned fishes

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Afrocascudo [39]	Gen. et sp. nov	Disputed	Brito et al.	Late Cretaceous	Kem Kem Group (Douira Formation)	Morocco	Originally described as a member of the family Loricariidae; Britz et al. (2024) considered the holotype specimen to be more likely a juvenile specimen of a species of the gar genus Obaichthys , [40] while Brito et al. (2024) reaffirmed the original identification. [41] The type species is A. saharaensis.
Amia basiloides [42]	Sp. nov		Brownstein & Near	Paleocene	Fort Union Formation	United States (  Montana)	A species of Amia .
Angiolinia [43]	Gen. et sp. nov	Valid	Carnevale & Tyler	Eocene	Monte Bolca Lagerstätte	Italy	A member of the family Zanclidae. The type species is A. mirabilis.
Archaeotetraodon bemisae [44]	Sp. nov	Valid	Bannikov & Tyler	Miocene	Maikop Group	Russia (  Krasnodar Krai)	A member of the family Tetraodontidae.
Barschichthys [45]	Gen. et sp. nov	Valid	Arratia & Schultze	Middle Triassic (Anisian)	Muschelkalk	Germany	A member of Teleosteomorpha, the type genus of the new family Barschichthyidae. The type species is B. ruedersdorfensis.
Beksinskiella [46]	Gen. et comb. nov	Valid	Granica, Bieńkowska-Wasiluk & Pałdyna	Oligocene		Czech Republic   Poland   Ukraine	A member of Clupeoidei of uncertain affinities. The type species is "Meletta" longimana Heckel (1850).
Cretapantodon [47]	Gen. et sp. nov	Valid	Taverne	Late Cretaceous (Cenomanian)		Lebanon	A member of the family Pantodontidae. The type species is C. polli.
Dapalis pauciserratus [48]	Sp. nov	In press	Ahnelt, Bradić-Milinović & Schwarzhans	Oligocene		Serbia
Eosemionotus ratumensis [49]	Sp. nov	Valid	Diependaal et al.	Middle Triassic (Anisian)	Vossenveld Formation	Netherlands	A member of the family Macrosemiidae.
Gregarialepis [50]	Gen. et sp. nov	Valid	Bakaev & Sergienko in Bakaev	Permian	Leninsk Formation	Russia	A member of Elonichthyiformes. The type species is G. binaria.
Lates odessanus [51]	Sp. nov		Kovalchuk et al.	Miocene		Ukraine	A species of Lates .
Macroprosopon [52]	Gen. et sp. nov	Valid	Capobianco, Zouhri & Friedman	Eocene (Ypresian)	Ouled Abdoun Basin	Morocco	A member of the family Osteoglossidae belonging to the subfamily Phareodontinae. The type species is M. hiltoni.
Makaira adensa [53]	Sp. nov	Valid	De Gracia et al.	Miocene	Pietra Leccese Formation	Italy	A marlin, a species of Makaira .
Makaira cyclovata [53]	Sp. nov	Valid	De Gracia et al.	Miocene	Pietra Leccese Formation	Italy	A marlin, a species of Makaira.
Marcopoloichthys mirigioliensis [54]	Sp. nov	Valid	Arratia, Bürgin & Furrer	Middle Triassic (Anisian)	Besano Formation	Switzerland	A stem teleosteomorph.
Megalomatia [55]	Gen. et sp. nov	Valid	Kim et al.	Late Triassic	Amisan Formation	South Korea	A basal ray-finned fish. The type species is M. minima.
Mengius [56]	Gen. et sp. nov	Valid	Thies, Stevens & Ansorge	Early Jurassic (Toarcian)	Grimmen Formation	Germany	A member of the family Lepidotidae. The type species is M. acutidens.
Mioscomber [57]	Gen. et comb. nov	Valid	Bannikov & Erebakan	Miocene		Croatia   Russia	A member of the family Scombridae. The type species is "Auxis" caucasica Bogachev (1933); genus also includes "Auxis" vrabcensis Kramberger (1882), "A." thynnoides Kramberger (1882) and "Scomber" sujedanus Steindachner (1860).
Pizzikoskerma [53]	Gen. et sp. nov	Valid	De Gracia et al.	Miocene	Pietra Leccese Formation	Italy	A marlin. The type species is P. salentina.
Planalepis [50]	Gen. et sp. nov	Valid	Bakaev & Sergienko in Bakaev	Permian	Tailugan Formation	Russia	A member of Elonichthyiformes. The type species is P. diserta.
Pogonias blettleri [58]	Sp. nov	Valid	Noriega et al.	Miocene	Paraná Formation	Argentina	A species of Pogonias .
Pseudopholidoctenus [45]	Gen. et sp. nov	Valid	Arratia & Schultze	Middle Triassic (Anisian)	Muschelkalk	Germany	A member of the family Pholidophoridae. The type species is P. germanicus.
Ruedersdorfia [45]	Gen. et sp. nov	Valid	Arratia & Schultze	Middle Triassic (Anisian)	Muschelkalk	Germany	A member of Teleosteomorpha of uncertain affinities. The type species is R. berlinensis.
Sicophasma [53]	Gen. et sp. nov	Valid	De Gracia et al.	Miocene	Pietra Leccese Formation	Italy	A marlin. The type species is S. macrocanalata.
Simpsonigobius [59]	Gen. et sp. nov	Valid	Dirnberger, Bauer & Reichenbacher	Miocene	Zeytindağ Group	Turkey	A member of Gobiiformes. The type species is S. nerimanae.
Stereolepis arcanum [60]	Sp. nov	Valid	Přikryl & Lin in Přikryl et al.	Pliocene	Upper Kueichulin Formation	Taiwan	A species of Stereolepis .
Teffichthys wui [61]	Sp. nov	In press	Xu et al.	Early Triassic (Olenekian)	Lower Qinglong Formation	China
Toarcocephalus [62]	Gen. et sp. nov	Valid	Cooper, López-Arbarello & Maxwell	Early Jurassic (Toarcian)	Posidonia Shale	Germany	A member of the family Coccolepididae. The type species is T. morlok.
Vinciguerria shinjiensis [63]	Sp. nov		Yabumoto, Nomura & Nazarkin	Miocene	Kuri Formation	Japan	A species of Vinciguerria .
Xeneichthys [64]	Gen. et sp. nov	Valid	Arratia & González-Rodríguez	Early Cretaceous (Albian)	El Doctor Formation	Mexico	A member of Euteleosteomorpha of uncertain phylogenetic placement. The type species is X. yanesi.

Otolith taxa

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Acromycter gratus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Acromycter .
Advenasciaena [66]	Gen. et sp. nov	Valid	Kocsis et al.	Miocene	Miri Formation	Brunei	A member of the family Sciaenidae. The type species is A. bruneiana.
Akko canoa [67]	Sp. nov		Schwarzhans & Aguilera	Pleistocene (Gelasian)	Canoa Formation	Ecuador	A species of Akko .
Akko lobata [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Yaviza Formation	Panama	A species of Akko.
Alienocarapus [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Bartonian)	Mission Valley Formation	United States (  California)	A member of the subfamily Carapinae. The type species is A. banana.
Ambassis californiensis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Ambassis .
Ampheristus brevicaudatus [68]	Sp. nov	Valid	Lin, Steurbaut & Nolf	Eocene	Nanjemoy Formation	United States (  Alabama   Maryland   Virginia)	A cusk-eel.
Ampheristus turgidus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A cusk-eel.
Antigonia transpacifica [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Antigonia .
Antilligobius collinsae [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian) to Pleistocene (Gelasian)	Escudo de Veraguas Formation	Costa Rica   Ecuador   Panama   Trinidad and Tobago   Venezuela	A species of Antilligobius .
Archaeotolithus eiggensis [69]	Sp. nov		Schwarzhans & Wakefield	Middle Jurassic (Bathonian)	Lealt Shale	United Kingdom
Archaeotolithus invernizziae [69]	Sp. nov		Schwarzhans & Wakefield	Middle Jurassic (Bathonian)	Lealt Shale	United Kingdom
Aruma atlantica [67]	Sp. nov		Schwarzhans & Aguilera	Pliocene (Piacenzian) to Pleistocene (Calabrian)	Bastimentos Formation	Panama	A species of Aruma .
Atrobucca borneensis [66]	Sp. nov	Valid	Kocsis et al.	Miocene	Seria Formation	Brunei	A species of Atrobucca .
Avitamugil [65]	Gen. et sp. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene	Ardath Shale	United Kingdom   United States (  California)	A mullet. The type species is A. scrippsi; genus also includes "Pentanemus" constrictus Stinton (1984).
Baobythites [65]	Gen. et sp. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene	Ardath Shale	France   United States (  Alabama   California   Mississippi   Texas)	A cusk-eel. The type species is B. pacificus; genus also includes "aff. Glyptophidium" stringeri Lin & Nolf (2022) and "Ophidium" biarritzense Sulc (1932).
Barbulifer amplus [67]	Sp. nov		Schwarzhans & Aguilera	Pleistocene (Gelasian and Calabrian)	Swan Cay Formation	Panama	A species of Barbulifer .
Bauzaia gibbosa [68]	Sp. nov	Valid	Lin, Steurbaut & Nolf	Eocene	Nanjemoy Formation	United States (  Maryland)	A cusk-eel.
Bollmannia angosturae [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian and Messinian)	Angostura Formation	Ecuador   Panama	A species of Bollmannia .
Bollmannia baldwinae [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Langhian to Messinian)	Yaviza Formation	Panama   Trinidad and Tobago   Venezuela	A species of Bollmannia.
Bollmannia cubaguana [67]	Sp. nov		Schwarzhans & Aguilera	Pliocene (Zanclean)	Cubagua Formation	Venezuela	A species of Bollmannia.
Bollmannia ornatissima [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian and Messinian)	Yaviza Formation	Panama   Trinidad and Tobago	A species of Bollmannia.
Bollmannia? paraguanaensis [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Burdigalian)	Cantaure Formation	Panama   Venezuela	Possibly a species of Bollmannia.
Bollmannia propensa [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian and Messinian)	Onzole Formation	Ecuador   Panama	A species of Bollmannia.
Bollmannia trinidadensis [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Burdigalian and Langhian)	Brasso Formation	Trinidad and Tobago   Venezuela	A species of Bollmannia.
Bollmannia venezuelana [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Langhian to Tortonian)	Ojo de Agua Formation	Trinidad and Tobago   Venezuela	A species of Bollmannia.
Brassoichthys [67]	Gen. et sp. nov		Schwarzhans & Aguilera	Miocene (Langhian)	Brasso Formation	Trinidad and Tobago	A goby. The type species is B. tornabenei.
Bregmaceros moersi [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Bartonian and Priabonian)	Yazoo Formation	United States (  Mississippi   Texas)	A codlet.
Bruneisciaena [66]	Gen. et sp. nov	Valid	Kocsis et al.	Miocene	Miri Formation	Brunei	A member of the family Sciaenidae. The type species is B. schwarzhansi.
Centroberyx predorsalis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Mission Valley Formation	United States (  California)	A species of Centroberyx .
Centroberyx pseudopulcher [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Ardath Shale	United States (  California)	A species of Centroberyx.
Chriolepis altus [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Yaviza Formation	Panama	A species of Chriolepis .
Chriolepis balboa [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Angostura Formation	Ecuador   Panama	A species of Chriolepis.
"Conger" biaculeatus [68]	Sp. nov	Valid	Lin, Steurbaut & Nolf	Eocene	Bashi Formation	United States (  Alabama)	A member of the family Congridae.
Coryphopterus cuevae [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Tuira Formation	Panama	A species of Coryphopterus .
Coryphopterus rodriguezi [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian and Messinian)	Chucunaque Formation	Panama	A species of Coryphopterus.
Coryphopterus xenosus [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Messinian) and Pliocene (Zanclean)	Cubagua Formation	Trinidad and Tobago   Venezuela	A species of Coryphopterus.
Ctenogobius darienensis [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Yaviza Formation	Panama	A species of Ctenogobius .
Cubaguanichthys [67]	Gen. et sp. nov		Schwarzhans & Aguilera	Pliocene (Zanclean)	Cubagua Formation	Venezuela	A goby. The type species is C. lanceolatus.
Cubiceps lautus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Cubiceps .
Diaphus ichishiensis [70]	Sp. nov	Valid	Tsuchiya et al.	Miocene		Japan	A species of Diaphus .
Diaphus roederi [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Diaphus.
Diretmus fidelis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Diretmus .
Electolapis [65]	Gen. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene		Belgium   France   United Kingdom   United States (  California)	A teleost of uncertain phylogenetic placement. The type species is "Ambassis" electilis Stinton & Nolf (1970); genus also includes "genus Gerreidarum" aquitanicus Nolf (1988).
Encheliophis transversalis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Encheliophis .
Eobidenichthys [65]	Gen. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Late Cretaceous (Campanian and Maastichtian) to Oligocene		Belgium   France   Germany   Netherlands   Ukraine   United Kingdom   United States (  Alabama   California)	A viviparous brotula. The type species is "Otolithus (Ophidiidarum)" symmetricus Frost (1934); genus also includes Eobidenichthys crepidatus (Voigt, 1926), Eobidenichthys lapierrei (Nolf, 1978), Eobidenichthys midwayensis (Nolf & Docker, 1993) and Eobidenichthys boscheineni (Schwarzhans, 1994).
Eophichthus [65]	Gen. et 2 sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian), possibly also Oligocene	Ardath Shale	United States (  California)	A member of the family Ophichthidae. The type species is E. ardathensis; genus also includes E. gracilis and possibly also "Conger" brevior Koken (1888).
Eopterois [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene		United States (  Mississippi)	A member of the family Scorpaenidae belonging to the tribe Pteroini. The type species is E. bandeli.
Evermannia chiriquiensis [67]	Sp. nov		Schwarzhans & Aguilera	Pliocene (Zanclean)	Cayo Agua Formation	Panama	A species of Evermannia .
Evermannia? problematica [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Burdigalian and Tortonian)	Cantaure Formation	Panama   Venezuela	Possibly a species of Evermannia.
Fitchichthys [65]	Gen. et sp. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene	Ardath Shale	Germany   United States (  California)	A teleost of uncertain phylogenetic placement. The type species is F. placidus; genus also includes Macroramphosidarum testuliformis Schwarzhans (2007).
Gillichthys caribbaeus [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Manzanilla Formation	Trinidad and Tobago	A species of Gillichthys .
Gnatholepis gunae [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Gatun Formation	Panama	A species of Gnatholepis .
Gnathophis frizzelli [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Bartonian)	Mission Valley Formation	United States (  California)	A species of Gnathophis .
Gobiosoma emberae [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Messinian)	Chucunaque Formation	Panama	A species of Gobiosoma .
Gobulus limonensis [67]	Sp. nov		Schwarzhans & Aguilera	Pleistocene (Gelasian)	Moin Formation	Costa Rica	A species of Gobulus .
"Haemulon" ypresiensis [68]	Sp. nov	Valid	Lin, Steurbaut & Nolf	Eocene	Nanjemoy Formation	United States (  Alabama   Maryland   Mississippi   Virginia)	A member of the family Haemulidae.
Hoplobrotula panicula [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Bartonian)	Mission Valley Formation	United States (  California)	A species of Hoplobrotula .
Hoplunnis diagonalis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Hoplunnis .
Huddlestonichthys [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A bonefish. The type species is H. profundicauda.
Ilypnus arayanensis [67]	Sp. nov		Schwarzhans & Aguilera	Pliocene (Zanclean)	Cubagua Formation	Venezuela	A species of Ilypnus .
Ipaimuraena [65]	Gen. et 2 sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Ardath Shale	United States (  California   Mississippi)	A member of the family Ophichthidae. The type species is I. californiensis; genus also includes I. fusiformis.
Leptolepis flexuosus [69]	Sp. nov		Schwarzhans & Wakefield	Middle Jurassic (Bathonian)	Lealt Shale	United Kingdom
Leptolepis skyensis [69]	Sp. nov		Schwarzhans & Wakefield	Middle Jurassic (Bathonian)	Lealt Shale	United Kingdom
Liparomorphus [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A possible snailfish. The type species is L. gerringerae.
Magnogobius [67]	Gen. et 2 sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian) to Pleistocene (Gelasian)	Cercado Formation	Costa Rica   Dominican Republic   Panama	A goby. The type species is M. grandis; genus also includes M. costaricensis.
Malacanthus? rugosus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A tilefish of uncertain generic placement.
Microgobius aphioides [67]	Sp. nov		Schwarzhans & Aguilera	Pliocene (Zanclean)	Cubagua Formation	Panama   Trinidad and Tobago   Venezuela	A species of Microgobius .
Microgobius camur [67]	Sp. nov		Schwarzhans & Aguilera	Pliocene (Zanclean) to Pleistocene (Calabrian)	Escudo de Veraguas Formation	Costa Rica   Panama	A species of Microgobius.
Microgobius cantaurensis [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Burdigalian to Tortonian)	Cantaure Formation	Panama   Venezuela	A species of Microgobius.
Microgobius chocorum [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Tuira Formation	Panama   Trinidad and Tobago	A species of Microgobius.
Microgobius cumana [67]	Sp. nov		Schwarzhans & Aguilera	Pleistocene (Calabrian)	Cumaná Formation	Venezuela	A species of Microgobius.
Microgobius ecuadorensis [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Angostura Formation	Ecuador   Panama	A species of Microgobius.
Microgobius glaber [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian and Messinian)	Manzanilla Formation	Dominican Republic   Panama   Trinidad and Tobago	A species of Microgobius.
Microgobius pezoldi [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian and Messinian)	Chucunaque Formation	Costa Rica   Ecuador   Panama   Trinidad and Tobago	A species of Microgobius.
Microgobius pirabasensis [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Aquitanian to Burdigalian)	Pirabas Formation	Brazil	A species of Microgobius.
Microgobius praeglaber [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Langhian to Tortonian)	Brasso Formation	Panama   Trinidad and Tobago	A species of Microgobius.
Microgobius robertsoni [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Aquitanian to Burdigalian)	Cantaure Formation	Brazil   Dominican Republic   Trinidad and Tobago   Venezuela	A species of Microgobius.
Microgobius rohri [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Burdigalian)	Brasso Formation	Trinidad and Tobago	A species of Microgobius.
Microgobius verecundus [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian to Messinian)	Tuira Formation	Ecuador   Panama   Trinidad and Tobago	A species of Microgobius.
Micropomadasys [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A member of the family Haemulidae. The type species is M. granulosus.
Myctophum isense [70]	Sp. nov	Valid	Tsuchiya et al.	Miocene		Japan	A species of Myctophum .
Neobythites longesulcatus [68]	Sp. nov	Valid	Lin, Steurbaut & Nolf	Eocene	Nanjemoy Formation	United States (  Maryland   Virginia)	A cusk-eel, a species of Neobythites .
"Neobythites" pamunkeyensis [68]	Sp. nov	Valid	Lin, Steurbaut & Nolf	Eocene	Nanjemoy Formation	United States (  Virginia)	A cusk-eel.
"Neobythites" stringeri [68]	Sp. nov	Valid	Lin, Steurbaut & Nolf	Eocene	Hatchetigbee Bluff Formation	United States (  Alabama)	A cusk-eel.
Nezumia armentrouti [71]	Sp. nov		Stringer & Welton	Oligocene	Lincoln Creek Formation	United States (  Washington)	A species of Nezumia .
Nibea ambugensis [66]	Sp. nov	Valid	Kocsis et al.	Miocene	Seria Formation	Brunei	A species of Nibea .
Nibea stintoni [66]	Sp. nov	Valid	Kocsis et al.	Miocene	Miri Formation	Brunei	A species of Nibea.
Palatogobius magnus [67]	Sp. nov		Schwarzhans & Aguilera	Pliocene (Zanclean)	Cayo Agua Formation	Panama	A species of Palatogobius .
Palatogobius pacificus [67]	Sp. nov		Schwarzhans & Aguilera	Pleistocene (Calabrian)	Armuelles Formation	Panama	A species of Palatogobius.
Palatogobius vantasselli [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian and Messinian)	Manzanilla Formation	Trinidad and Tobago	A species of Palatogobius.
Paracarapus californiensis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Bartonian)	Mission Valley Formation	United States (  California)	A member of the subfamily Carapinae.
Paralabrax nolfi [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)		Belgium	A species of Paralabrax .
Parascombrops fragilis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Parascombrops .
Parrella lucida [67]	Sp. nov		Schwarzhans & Aguilera	Pliocene (Zanclean)	Manzanilla Formation	Trinidad and Tobago   Venezuela	A species of Parrella .
Pauxillibrotula [65]	Gen. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene		France   United States (  California)	A cusk-eel. The type species is "genus Neobythitinorum" dolinorum Nolf (1988).
Peprilus? muelleri [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Bartonian)	Mission Valley Formation	United States (  California)	Possibly a species of Peprilus .
Platygonostoma [65]	Gen. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene		France   United States (  California)	A member of the family Sternoptychidae. The type species is "Danaphos" gibbsi Nolf (1988).
Plesiolithus [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A teleost of uncertain phylogenetic placement. The type species is P. inornatus.
Polyipnus apicalis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Polyipnus .
Porrolapis [65]	Gen. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene		France   United States (  California)	A teleost of uncertain phylogenetic placement. The type species is "genus Cyprinodontoideorum" ornatissimus Nolf (1988).
Praearchirolithus altus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Mission Valley Formation	United States (  California)	A member of the family Soleidae.
Praearchirolithus confusus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Mission Valley Formation	United States (  California)	A member of the family Soleidae.
Prionotus kieli [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Priabonian)	Yazoo Clay	United States (  Mississippi)	A species of Prionotus .
Progonostoma torreyensis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A member of the family Gonostomatidae.
Proparrella [67]	Gen. et 2 sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian) to Pliocene (Zanclean)	Tuira Formation	Ecuador   Panama   Trinidad and Tobago   Venezuela	A goby. The type species is P. darienensis; genus also includes P. pusilla.
Protanago [65]	Gen. et comb. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene		Italy   United States	A member of the family Congridae. The type species is "Otolithus (Platessae)" sector Koken (1888); genus also includes "Parbatmya" brazosensis Dante & Frizzell (1965), "Ariosoma" nonsector Nolf & Stringer (2003) "Paraconger" solidus Müller (1999) and "Paraconger" wechesensis Lin & Nolf (2022), as well as new species P. miramarensis.
Protaulopus [65]	Gen. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene		France   United States (  California)	A member of the family Aulopidae. The type species is "genus Percoideorum" pseudolestidiops Nolf (1988).
Protobembrops [65]	Gen. et comb. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene		Belgium   France   United Kingdom   United States	A member of the family Trichonotidae. The type species is "Trachinus" laevigatus Koken (1888); genus also includes "Trachinus" janeti Priem (1911), as well as new species P. ascensus.
Protonibea nolfi [66]	Sp. nov	Valid	Kocsis et al.	Miocene	Miri Formation	Brunei	A species of Protonibea .
Protopomadasys [65]	Gen. et 2 sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Mission Valley Formation	United States (  California)	A member of the family Haemulidae. The type species is P. fitchi; genus also includes P. pacificus.
Pseudobrotulina [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A viviparous brotula. The type species is P. fitchi.
Pseudolabrax [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Mission Valley Formation	United States (  California)	A member of the family Serranidae. The type species is P. missionis.
Quietula rueberi [67]	Sp. nov		Schwarzhans & Aguilera	Miocene (Tortonian)	Manzanilla Formation	Trinidad and Tobago	A species of Quietula .
Saccogaster salebrosus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Saccogaster .
Scombrops americanus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A gnomefish.
Scorpaenodes acronis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Scorpaenodes .
Scorpaenodes huddlestoni [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene	Ardath Shale	United States (  California)	A species of Scorpaenodes.
Scorpaenodes starnesi [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Scorpaenodes.
Serranus? fongeri [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Ardath Shale	United States (  California)	A member of the family Serranidae of uncertain generic placement.
Serranus? moratus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Ardath Shale	United States (  California)	A member of the family Serranidae of uncertain generic placement.
Serranus? strigosus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian and Bartonian)	Mission Valley Formation	United States (  California)	A member of the family Serranidae of uncertain generic placement.
Sirembrotula [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A cusk-eel. The type species is S. mediator.
Sparus? sparsus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A member of the family Sparidae of uncertain generic placement.
Strongylauris [65]	Gen. et comb. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene		United States	A member of the family Haemulidae. The type species is genus aff. Xenistius obliquus Müller (1999).
Symmetrosulcus virginicus [68]	Sp. nov	Valid	Lin, Steurbaut & Nolf	Eocene	Nanjemoy Formation	United States (  Alabama   Maryland   Virginia)	A cusk-eel.
Synodus diadematus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Bartonian)	Moodys Branch Formation	United States (  Mississippi)	A species of Synodus .
Synodus moodyensis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Bartonian and Priabonian)	Moodys Branch Formation	United States (  Mississippi (  Texas)	A species of Synodus.
Torreyichthys [65]	Gen. et sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A member of the family Serranidae. The type species is T. speciosus.
Uranoscopus? lini [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A stargazer of uncertain generic placement.
Uroconger priscus [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Bartonian)	Mission Valley Formation	United States (  California)	A species of Uroconger .
Varicus pliocenicus [67]	Sp. nov		Schwarzhans & Aguilera	Pliocene (Zanclean)	Cubagua Formation	Venezuela	A species of Varicus .
Verilus lajollaensis [65]	Sp. nov	Valid	Schwarzhans, Stringer & Takeuchi	Eocene (Lutetian)	Ardath Shale	United States (  California)	A species of Verilus .
Vinciguerria rotunda [70]	Sp. nov	Valid	Tsuchiya et al.	Miocene		Japan	A species of Vinciguerria .
Waitakia dorsogibbosa [68]	Sp. nov	Valid	Lin, Steurbaut & Nolf	Eocene	Nanjemoy Formation	United States (  Maryland   Virginia)	A member of the family Percophidae belonging to the subfamily Hemerocoetinae.

Ray-finned fish research

• New, rank-free classification of extant and extinct ray-finned fishes is presented by Near & Thacker (2024). ^[72]
• Dankina, Šečkus & Plax (2024) describe new fossil material of ray-finned fishes from the Devonian (Eifelian and Givetian) strata in Belarus and Lithuania, including scales of members of the genera Cheirolepis and Orvikuina , and improving biostratigraphic correlations within the studied region. ^[73]
• New information on the evolution of the brain in the early ray-finned fishes, gained from the study of remains of the latest Carboniferous-earliest Permian ray-finned fishes from Brazil with extensive soft-tissue preservation of brains, cranial nerves, eyes and possible cardiovascular tissues, is presented by Figueroa et al. (2024). ^[74]
• Redescription and study on the affinities of Westollia crassa is published by Štamberg (2024), who confirms the placement of this species as a distinct member of the family Aeduellidae. ^[75]
• A study on teeth of members of Eurynotoidiformes is published by Bakaev et al. (2024), who interpret eurynotoidiforms as likely the oldest known actinopterygians specialized for herbivory. ^[76]
• Revision of the fossil material of ray-finned fishes from the Permian-Triassic transition from the Kuznetsk Basin (Siberia, Russia) is published by Bakaev (2024). ^[77]
• Kumar et al. (2024) describe fossil material of a member of the genus Cylindracanthus from the Eocene Naredi Formation (India), extending known geographical distribution of members of the genus. ^[78]
• Cavin et al. (2024) describe fossil material of a large-bodied ray-finned fish from a Lower Triassic outcrop in northern Dobrogea (Romania), with anatomy interpreted as indicative of affinities with Polzbergiidae, and interpret the studied fossils as belonging to the earliest known large, specialized, durophagous neopterygian. ^[79]
• Review of the fossil record of non-marine members of Pycnodontiformes is published by Cawley & Kriwet (2024), who report that the incursions of pycnodontiforms into brackish and freshwater habitats increased during the Cretaceous period, when the rising sea levels might have made it easier for marine fishes to colonize continental environments. ^[80]
• Revision of evidence of growth and aging in the fossil material of pycnodonts is published by Capasso (2024), who find no evidence for a single overall pattern of somatic growth, but reports evidence of specific changes which seem to be common in the studied pycnodonts. ^[81]
• Capasso, Ebert & Witzmann (2024) review dental pathologies in pycnodonts, report uneven distribution of tooth anomalies in the pycnodont fossil record and interpret such distribution as suggesting that pycnodont teeth weren't initially ordered into distinct dental rows, which only appeared in the most derived forms. ^[82]
• Weis et al. (2024) study gut contents of pachycormid specimens from the Toarcian strata in Luxembourg, and report that the studied pachycormids fed on octobrachian cephalopods. ^[83]
• Cooper (2024) describes fossil material of Pachycormus macropterus from the Toarcian strata in Normandy (France) representing the first direct evidence of cannibalism in a pachycormiform fish reported to date. ^[84]
• Redescription of Aphnelepis australis , based on data from a new specimen from the Talbragar fossil site (Australia), is published by Bean (2024), who assigns A. australis to the teleost family Archaeomaenidae. ^[85]
• Bennett (2024) describes a series of caudal vertebrae of an ichthyodectiform from the Upper Cretaceous Niobrara Formation (Kansas, United States), preserved with pathologies unknown in extant and fossil fishes but sharing similarities with diffuse idiopathic skeletal hyperostosis and spondylosis deformans of mammals, and interprets the studied pathologies as caused by combined bacterial and fungal infections, affecting the swimming abilities of the studied fish and likely ultimately resulting in its death. ^[86]
• Cantalice et al. (2024) describe fossil material of a previously unknown albuliform from the Campanian strata from the Múzquiz Lagerstätte (Austin Group; Coahuila, Mexico), estimated to be approximately 3,9 metres long and representing the largest albuliform reported to date. ^[87]
• Liu et al. (2024) revise Osteochilus sanshuiensis, Osteochilus longipinnatus and Osteochilus laticorpus from the Paleogene Buxin Formation (China), synonymizing them into a single species named Jianghanichthys sanshuiensis . ^[88]
• Claeson et al. (2024) present a new reconstruction of Oncorhynchus rastrosus , interpreting its enlarged teeth as projecting laterally like tusks. ^[89]
• Redescription of Whitephippus tamensis is published by Davesne & Andrews et al. (2024), who interpret this taxon as an early member of Lampriformes, likely related to extant opahs and oarfishes and providing the earliest known evidence of adaptation of lampriforms to the pelagic environment. ^[90]
• Laine et al. (2024) sequence three-spined stickleback genomes from Late Pleistocene sediments from the Jossavannet lake (Finnmark, Norway), who identify more marine- than freshwater-associated ancestry in the studied genomes, but also find evidence that freshwater-associated alleles were already established at known loci of large effect during the brackish phase of the formation of the lake. ^[91]
• Miyata et al. (2024) describe an assemblage of marine fish otoliths from the Lower Cretaceous Kimigahama Formation (Japan), including the oldest known fossil material of members of the family Ichthyotringidae, as well as of otoliths of pterothrissine bonefishes, elopiforms and herring smelts indicative of cosmopolitan distribution of these groups during the Early Cretaceous. ^[92]
• Evidence from the skeletal and otolith fossil record, interpreted as indicative of presence of rich and diverse teleost assemblages in known Maastrichtian marine settings which were significantly affected by the Cretaceous–Paleogene extinction event, is presented by Schwarzhans, Carnevale & Stringer (2024), who also find that perciforms and related groups, ophidiiforms and gadiforms underwent an explosive radiation and diversification in the early Paleogene. ^[93]

Lobe-finned fishes

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Harajicadectes [94]	Gen. et sp. nov	Valid	Choo et al.	Devonian (Givetian–Frasnian)	Parke Siltstone	Australia	A basal member of Tetrapodomorpha. The type species is H. zhumini.
Jemalongia [95]	Gen. et sp. nov		Young	Devonian	Cloghnan Shale	Australia	A probable member of Porolepiformes. The type species is J. ritchiei.

Lobe-finned fish research

• Toriño et al. (2024) reconstruct the skull of a specimen of Mawsonia from the Upper Jurassic strata in Uruguay. ^[96]
• Cupello et al. (2024) describe pulmonary vessels in a calcified lung of a specimen of Macropoma mantelli from the Upper Cretaceous Chalk Formation (United Kingdom) and in extant coelacanth, confirming the air-breathing function of the tubular structure in the fossil coelacanth specimens called the calcified organ, and interpret coelacanths as having pulmonary arterie homologous to the same paired branches of the air-filled organs (including gas bladders) of other bony fishes. ^[97]
• Redescription of the tooth plates of Atlantoceratodus iheringi , based on data from new and previously described fossil material, is published by Panzeri (2024). ^[98]
• Stewart et al. (2024) describe the anatomy of the axial skeleton of Tiktaalik roseae , providing evidence of the appearance of the evolution of increased mobility at the head-trunk boundary prior to the origin of limbs, as well as evidence of the presence of derived features of the anatomy of the ribs that were previously known only from limbed taxa, and interpret the anatomy of T. roseae as indicative of a locomotor capacity intermediate between those of other elpistostegalians and those of limbed vertebrates. ^[99]

General research

• A diverse assemblage of fish remains, including the youngest fossil material of Bransonella lingulata reported to date, is described from the Carboniferous (Gzhelian) Finis Shale (Texas, United States) by Ivanov & Seuss (2024). ^[100]
• Rinehart & Lucas (2024) describe a trace of a fish walking on a muddy substrate from the Permian Robledo Mountains Formation (New Mexico, United States), interpret it as unlikely to be produced by a lobe-finned fish, and name a new ichnotaxon Ambulopisces voigti . ^[101]
• Boles et al. (2024) describe a new assemblage of vertebrate microfossils from the Cretaceous-Paleogene transition from the Hornerstown Formation (New Jersey, United States), including the first Cretaceous (Maastrichtian) records of Palaeogaleus vincenti and Paralbula marylandica and the first Paleocene record of Saurocephalus lanciformis , extending known geographic range of Saurocephalus, Phyllodus paulkatoi and Notidanodon brotzeni , and providing evidence of slow recovery of elasmobranchs and ray-finned fish after the Cretaceous–Paleogene extinction event. ^[102]
• Goedert et al. (2024) describe a new assemblage of fish fossils from the Eocene (Ypresian) Crescent Formation (Washington, United States), including the first early Eocene shark assemblage reported from western North America. ^[103]
• Ebersole et al. (2024) describe a new assemblage of fish fossils from the Oligocene Rupelian Red Bluff Clay (Alabama, United States), including the first record of a member of the genus Eostegostoma from the Oligocene and from the Gulf Coastal Plain of North America, as well as fossils of Macrorhizodus praecursor, Xiphiorhynchus kimblalocki, Cylindracanthus rectus and C. ornatus providing evidence of persistence of these species into at least the early Oligocene. ^[104]

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