# Hemisaurida

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{{Short description|Extinct genus of ray-finned fishes}}
{{Automatic taxobox
| fossil_range = {{fossil range|Cenomanian}}
| image = Hemisaurida hakelensis 34.JPG
| image_caption = Specimen of ''H. hakelensis'', [Malmerendi Museum of Natural Science](/source/Malmerendi_Museum_of_Natural_Science)
| taxon = Hemisaurida
| authority = [Kner](/source/Rudolf_Kner), 1867
| subdivision_ranks = Species
| subdivision = * ''H. hakelensis'' <small>Goody, 1969</small>
* ''H. neocomiensis'' <small>Kner, 1867</small>
}}

'''''Hemisaurida'''''<ref>{{Cite web |title=PBDB Taxon |url=https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=35569 |archive-url=http://web.archive.org/web/20250813225229/https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=35569 |archive-date=2025-08-13 |access-date=2026-05-25 |website=paleobiodb.org |language=en}}</ref> is an extinct genus of prehistoric marine [aulopiform](/source/Aulopiformes) [ray-finned fish](/source/Actinopterygii), known from [Late Cretaceous](/source/Late_Cretaceous) fossils found in Europe and the Middle East.<ref name=":0">{{Cite journal |last=Silva |first=Hilda M. A. |last2=Gallo |first2=Valéria |date=2011 |title=Taxonomic review and phylogenetic analysis of Enchodontoidei (Teleostei: Aulopiformes) |url=https://www.scielo.br/j/aabc/a/vPvQZ4v493QvhCLL9wh9zDb/?format=html&lang=en |journal=Anais da Academia Brasileira de Ciências |language=en |volume=83 |pages=483–511 |doi=10.1590/S0001-37652011000200010 |issn=0001-3765}}</ref>

The following species are known:<ref name=":0" /><ref>{{Cite journal |last1=Amalfitano |first1=Jacopo |last2=Giusberti |first2=Luca |last3=Fornaciari |first3=Eliana |last4=Carnevale |first4=Giorgio |date=2020-04-03 |title=UPPER CENOMANIAN FISHES FROM THE BONARELLI LEVEL (OAE2) OF NORTHEASTERN ITALY |url=https://riviste.unimi.it/index.php/RIPS/article/view/13224 |journal=Rivista Italiana di Paleontologia e Stratigrafia |language=en |volume=126 |issue=2 |doi=10.13130/2039-4942/13224 |issn=2039-4942}}</ref>

* '''''H. hakelensis''''' <small>Goody, 1969</small> - [Cenomanian](/source/Cenomanian) of [Lebanon](/source/Lebanon) ([Sannine Formation](/source/Sannine_Formation))
* '''''H. neocomiensis''''' <small>[Kner](/source/Rudolf_Kner), 1867</small> ([type species](/source/type_species)) - Cenomanian of [Slovenia](/source/Slovenia) ([Komen Limestone](/source/Komen_Limestone))<ref>{{Cite journal |date=2008-04-01 |title=New palaeoenvironmental model for the Komen (Slovenia) Cenomanian (Upper Cretaceous) fossil lagerstätte |url=https://www.sciencedirect.com/science/article/abs/pii/S0195667107001097 |journal=Cretaceous Research |language=en-US |volume=29 |issue=2 |pages=316–328 |doi=10.1016/j.cretres.2007.05.003 |issn=0195-6671}}</ref>

Previously placed in the family [Halecidae](/source/Halecidae)<ref>{{Cite journal |last=Davis |first=Matthew P. |last2=Fielitz |first2=Christopher |date=2010-12-01 |title=Estimating divergence times of lizardfishes and their allies (Euteleostei: Aulopiformes) and the timing of deep-sea adaptations |url=https://www.sciencedirect.com/science/article/pii/S1055790310003702 |journal=Molecular Phylogenetics and Evolution |volume=57 |issue=3 |pages=1194–1208 |doi=10.1016/j.ympev.2010.09.003 |issn=1055-7903}}</ref>, more recent studies have found it to likely not belong to that family, and it may occupy a more [basal](/source/Basal_(phylogenetics)) position within the [Enchodontoidei](/source/Enchodontoidei).<ref name=":0" /><ref>{{Cite journal |last=Vernygora |first=Oksana |last2=Murray |first2=Alison M. |last3=Luque |first3=Javier |last4=Ruge |first4=Mary Luz Parra |last5=Fonseca |first5=María Euridice Paramo |date=2018-09-26 |title=A new Cretaceous dercetid fish (Neoteleostei: Aulopiformes) from the Turonian of Colombia |journal=Journal of Systematic Palaeontology |volume=16 |issue=12 |pages=1057–1071 |doi=10.1080/14772019.2017.1391884 |issn=1477-2019}}</ref>

==References==
{{Portal|Paleontology}}
†
Category:Cretaceous fish of Europe
Category:Prehistoric ray-finned fish genera
Category:Late Cretaceous fish of Asia
Category:Late Cretaceous bony fish
Category:Cenomanian genera
Category:Fossil taxa described in 1867
Category:Taxa named by Rudolf Kner

<references />
{{Taxonbar|from=Q5712055}}
{{Aulopiformes-stub}}
Category:Fossils of Lebanon
Category:Fossils of Slovenia

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Adapted from the Wikipedia article [Hemisaurida](https://en.wikipedia.org/wiki/Hemisaurida) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Hemisaurida?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.