List of hyolith genera

Haplophrentis

This list of hyoliths is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be members of hyolitha, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful ( nomina dubia ), or were not formally published ( nomina nuda ), as well as junior synonyms of more established names, and genera that are no longer considered hyoliths.

Naming conventions and terminology

Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include:

• Junior synonym : A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type specimens are later assigned to the same genus, the first to be published (in chronological order) is the senior synonym, and all other instances are junior synonyms. Senior synonyms are generally used, except by special decision of the ICZN, but junior synonyms cannot be used again, even if deprecated. Junior synonymy is often subjective, unless the genera described were both based on the same type specimen.
• Nomen nudum (Latin for "naked name"): A name that has appeared in print but has not yet been formally published by the standards of the ICZN. Nomina nuda (the plural form) are invalid, and are therefore not italicized as a proper generic name would be. If the name is later formally published, that name is no longer a nomen nudum and will be italicized on this list. Often, the formally published name will differ from any nomina nuda that describe the same specimen.
• Nomen oblitum (Latin for "forgotten name"): A name that has not been used in the scientific community for more than fifty years after its original proposal.
• Preoccupied name: A name that is formally published, but which has already been used for another taxon. This second use is invalid (as are all subsequent uses) and the name must be replaced. As preoccupied names are not valid generic names, they will also go unitalicized on this list.
• Nomen dubium (Latin for "dubious name"): A name describing a fossil with no unique diagnostic features. As this can be an extremely subjective and controversial designation, this term is not used on this list.

The list

Genus Authors Year Status Age Location Notes Adyshevitheca Aimitus Aldanotheca Allatheca Altaicornus Ambrolinevitus Amydaicornus Anabaricornus Ancheilotheca Angusticornus Antiquatheca Arathecus Asijatheca Atdabanithes Bactrotheca Bolitheca Borealicornus Brevilabiatus Bucanotheca Burithes Calcitheca Camerotheca Carinitheca Carinolithes Cavernolites Ceratotheca Chelsonella Circotheca Cobboldiella Conotheca Contitheca Costatheca Crestjahitus Crossbitheca Cupitheca Probably an orthothecid [1] Curtitheca Decipilites Decoritheca Devoniotheca Dilites Diplotheca Doescherina Doliutus Dorsojugatus Dorsolinevitus Ebianotheca Egdetheca Elegantilites Emarites Ensitheca Eonovitatus Erraticornus Eumorpholites Exilitheca Extentitheca Firmicornus Foersteotheca Galicornus Globorilus Globoritubulus Gompholites Goniocornus Gracilitheca Grandicornus Grantitheca Hallotheca Haplophrentis Helenia Holmitheca Hyolithes Hyptiotheca Inflaticornus Ingolitotheca Insignicornus Isititheca Jacuticornus Jacutolitus Joachimilites Ketemecornus Khetatheca Korilithes Kotuyitheca Kugdatheca Kunyangotheca Kuonamkicornus Kygmaeoceras Ladatheca Laratheca Laticornus Leibotheca Lenalitus Lenatheca Lentitheca Leolites Linevitus Lirotheca Loculitheca Lophotheca Macrotheca The largest hyoliths, exceeding 20 cm in linear dimension [2] Majatheca Malykanotheca Meitanovitus Micatheca Microcornus Minitheca Mojczatheca Mooritheca Neobactrotheca Neogloborilus Neopauxillites Nephrotheca Nervolites Nevadotheca Nikatheca Nitoricornus Notabilitus Novakotheca Novitatus Obliquatheca Oblisicornus Oboedalites Orthotheca Ovalitheca Oxytus Panitheca Parahyolithes Parakorilithes Parkula Patholites Pauxillites Pedunculotheca With a (disputed) pedicle [3] [4] [5] Persicitheca Petasotheca Planotheca Plicitheca Pseudotoxeuma Pterigotheca Quadrotheca Quinquelithes Rarissimetus Recilites Renitheca Rodentilites Semielliptotheca Slapylites Sokolovitheca Spinulitheca Stimulitheca Sulcagloborilus Sulcavitus Tajinella Tcharatheca Tchuranitheca Tetratheca Tizilites Toxeumorphora Trapezotheca Trapezovitus Tulenicornus Tuojdachithes Turcutheca Uniformitheca Virgatotheca Virgulaxonaria Xiadongtubulus Yacutolithuus Yankongovitus

See also

• Paleontology portal
• Marine life portal

• List of prehistoric brittle stars
• List of prehistoric sea cucumbers
• List of crinoid genera

References

1. Skovsted, Christian B.; Pan, Bing; Topper, Timothy P.; Betts, Marissa J.; Li, Guoxiang; Brock, Glenn A. (2016). "The operculum and mode of life of the lower Cambrian hyolith Cupitheca from South Australia and North China". Palaeogeography, Palaeoclimatology, Palaeoecology. 443: 123–130. Bibcode:2016PPP...443..123S. doi:10.1016/j.palaeo.2015.11.042.
2. Vermeij, Geerat J. (January 2016). Raia, Pasquale (ed.). "Gigantism and its implications for the history of life". PLOS ONE. 11 (1): e0146092. Bibcode:2016PLoSO..1146092V. doi: 10.1371/journal.pone.0146092 . PMC   4714876 . PMID   26771527.
3. Sun, Hai-Jing; Smith, Martin Ross; Zeng, Han; Zhao, Fang-Chen; Li, Guo-Xiang; Zhu, Mao-Yan (2018). "Hyoliths with pedicles illuminate the origin of the brachiopod body plan". Proceedings of the Royal Society B. 285 (1887): 20181780. doi:10.1098/rspb.2018.1780. PMC   6170810 . PMID   30257914.
4. Liu, Fan; Skovsted, Christian B.; Topper, Timothy P.; Zhang, Zhifei; Shu, Degan (2020). "Are hyoliths Palaeozoic lophophorates?". National Science Review. 7 (2): 453–469. doi: 10.1093/nsr/nwz161 . PMC   8289160 .
5. Smith, Martin R. (February 2020). "Finding a home for hyoliths". National Science Review. 7 (2): 470–471. doi: 10.1093/nsr/nwz194 . PMC   8288929 .

• Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (HYOLITHA)". Bulletins of American Paleontology. 364: 560. Retrieved 2009-07-13.