Reptilia - Plesiosauria - Elasmosauridae
Synonym: Hydralmosaurus Welles 1943
Full reference: S. P. Welles. 1943. Elasmosaurid plesiosaurs with description of new material from California and Colorado. Memoirs of the University of California 13:125-254
Parent taxon: Elasmosaurinae according to J. P. O'Gorman 2019
See also Carpenter 1999, Carroll 1988, Ketchum and Benson 2010, O'Keefe 2001, Otero 2016, Otero et al. 2012, Sepkoski 2002, Storrs 1999, Welles 1943, Welles 1949 and Welles 1962
Sister taxa: Albertonectes, Hydrotherosaurus, Nakonanectes, Terminonatator, Elasmosaurus
Subtaxa: Hydralmosaurus serpentinus Styxosaurus browni Styxosaurus snowii Thalassonomosaurus marshii
Type: Styxosaurus snowii
Ecology: aquatic carnivore
Distribution:
• Cretaceous of United States (8: Kansas, Nebraska, South Dakota, Wyoming collections)
Total: 8 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.