Full reference: C. A. Brochu. 1997. A review of "Leidyosuchus" (Crocodyliformes, Eusuchia) from the Cretaceous through Eocene of North America. Journal of Vertebrate Paleontology 17(4):679-697
Parent taxon: Crocodylia according to E. J. Lessner et al. 2025
See also Brochu 1997, Brochu 2000, Brochu et al. 2012, Bronzati et al. 2012, Burger 2007, Darlim et al. 2022, Farke et al. 2014, Fiorelli and Calvo 2008, Jouve et al. 2008, Martin and Buffetaut 2008, Martin et al. 2010, Nascimento and Zaher 2011, Osi et al. 2007, Pol and Norell 2004, Puértolas et al. 2011, Rio and Mannion 2021, Sertich and O'Connor 2014, Wu et al. 2001 and Zaher et al. 2006
Sister taxa: Alligatoroidea, Amphicoelia, Archaeosuchidae, Asiatosuchus volgensis, Asiatosuchus zajsanicus, Asifcroco, Baharijodon, Batrachopodidae, Bottosaurus tuberculatus, Brachydectes major, Brachygnathosuchus, Brevirostres, Coelospondilia, Colossoemys, Colossoemys macrococcygeana, Crocodilus delucii, Crocodilus pristinus, Crocodylus sinhaleyus, Deinosuchus rugosus, Dijaquesopus, Dinosuchus terror, Diplocynodus sphenops, Emys quaternaria, Europaeosuchus, Gavialis dixoni, Gavialis papuensis, Gavialoidea, Hatcherichnus, Isselosaurus, Isselosaurus doduni, Kuangyuanpus, Laiyangpus, Longirostres, Machinosaurus, Mehliella, Nihilichnus, Peipesuchus, Pinacosuchus, Planocraniidae, Pliosaurus phosphaticus, Pristichampsinae, Procoelia, Procrocodilia, Pyrenodon, Rhytisodon, Stenosaurus, Thecachampsa serrata, Thecachampsa squankensis, Tienosuchus, Trialestia, Zholsuchus
Subtaxa: Borealosuchus acutidentatus Borealosuchus formidabilis Borealosuchus griffithi Borealosuchus sternbergii Borealosuchus threeensis Borealosuchus wilsoni Leidyosuchus riggsi
Ecology: carnivore
Distribution:
• Eocene of United States (12: Arkansas, Texas, Wyoming collections)
• Clarkforkian of United States (16: Colorado, Wyoming)
• Paleocene of Canada (4: Alberta, Saskatchewan), United States (17: Colorado, Montana, New Mexico, North Dakota, Texas, Wyoming)
• Cretaceous to Paleogene of United States (1: New Jersey)
• Cretaceous of United States (85: Colorado, Montana, New Jersey, North Carolina, North Dakota, South Carolina, South Dakota, Wyoming)
Total: 135 collections including 136 occurrences
Specimen images are retrieved through the ePANDDA API.