Osteichthyes - Crossognathiformes - Pachyrhizodontidae
Named ascribed to Agassiz in Dixon 1850.
Alternative spelling: Pachyrizodus
Parent taxon: Pachyrhizodontidae according to J. A. Ebersole et al. 2022
See also Amalfitano et al. 2020, Applegate 1970, Ballen 2019, Bice and Shimada 2016, Cumbaa et al. 2006, Dixon 1850, Giersch et al. 2010, Hay 1902, Nagrodski et al. 2012, Novack-Gottshall 2025, Otero and Suárez 2022, Sepkoski 2002, Shimada et al. 2006, Thurmond and Jones 1981, van der Laan 2019 and Woodward 1901
Sister taxa: Cavinichthys, Conosaurus, Elopopsis, Goulmimichthys, Lebrunichthys, Oricardinus, Polcynichthys, Raphiosaurus, Stanhopeichthys
Subtaxa: Pachyrhizodus basalis Pachyrhizodus caninus Pachyrhizodus curvatus Pachyrhizodus dibleyi Pachyrhizodus kingi Pachyrhizodus latimentum Pachyrhizodus leptognathus Pachyrhizodus leptopsis Pachyrhizodus minimus Pachyrhizodus subulidens Pachyrhizodus velox
Type: Pachyrhizodus basalis
Ecology: nektonic carnivore
Distribution:
• Paleocene of United States (1: Illinois collection)
• Cretaceous of Australia (1), Canada (2: Manitoba, Saskatchewan), Chile (1), Italy (3), Mexico (2), the Russian Federation (2), Sweden (1), the United Kingdom (5), United States (41: Alabama, Arizona, Colorado, Iowa, Kansas, Nebraska, South Carolina, South Dakota, Texas, Wyoming)
Total: 59 collections including 72 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.