Pachycormiformes
| Pachycormiformes Temporal range: Early Jurassic - Late Cretaceous,
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.JPG)
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| Skeleton of Pachycormus | |
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| Skeleton of Orthocormus | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Infraclass: | Teleosteomorpha |
| Order: | †Pachycormiformes Berg 1937 |
| Family: | †Pachycormidae Woodward, 1895 |
| Type genus | |
| Pachycormus Agassiz, 1833
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| Genera | |
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See text | |
| Synonyms[1] | |
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Pachycormiformes is an extinct order of marine ray-finned fish. They lived in the early Jurassic period to the end of the Cretaceous. It only includes a single family, the Pachycormidae. They were characterized by having serrated pectoral fins (though more recent studies demonstrated that fin shape diversity in this group was high[2]), reduced pelvic fins and a bony rostrum.
Relationships
Pachycormiformes were probably members of the Teleosteomorpha. This was a group which includes all fish more closely related to modern teleosts than to Holostei. This is a group which includes the bowfin and gars.
Taxonomy
- Euthynotus Wagner, 1860
- Haasichthys Delsate, 1999
- Notodectes Dolgopol de Saez, 1949
- Pseudoasthenocormus
- Sauropsis Agassiz, 1843
- Hypsocorminae Vetter, 1881
- Australopachycormus Kear, 2007
- Hypsocormus Wagner, 1860
- Kaykay Gouiric-Cavalli & Arratia, 2022
- Orthocormus Weitzel, 1930
- Protosphyraena Leidy, 1857
- Simocormus Maxwell et al., 2020
- Asthenocorminae Cooper et al., 2022
- Germanostomus Cooper et al., 2022
- Ohmdenia Hauff, 1953
- Pachycormus Agassiz, 1833
- Saurostomus Agassiz, 1843
- Suspension-feeding clade
- Asthenocormus Woodward, 1895
- Bonnerichthys Friedman et al., 2010
- Leedsichthys Woodward, 1889
- Martillichthys Liston, 2008
- Rhinconichthys Friedman et al., 2010
Related pages
References
- ↑ van der Laan, R. (2018). "Family-group names of fossil fishes". European Journal of Taxonomy (466). doi:10.5852/ejt.2018.466.
- ↑ Liston, Jeff J.; Maltese, Anthony E.; Lambers, Paul H.; Delsate, Dominique; Harcourt-Smith, William E. H.; Heteren, Anneke H. van (2019-11-07). "Scythes, sickles and other blades: defining the diversity of pectoral fin morphotypes in Pachycormiformes". PeerJ. 7 e7675. doi:10.7717/peerj.7675. ISSN 2167-8359. PMC 6842561. PMID 31720097.
Other websites
Media related to Pachycormiformes at Wikimedia Commons
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