Pachycormiformes

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), 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 

 Leedsichthys
 Bobasatraniiformes
 Ellimmichthyiformes

 References 

 Other websites 

Category:Ray-finned fish
Category:Extinct fish