Cephalopoda - Ammonitida - Sphaeroceratidae
Parent taxon: Eurycephalitinae according to T. P. Poulton and R. L. Hall 2019
See also Arkell et al. 1957, Arthur et al. 1993, Imlay 1953, Parent 1998 and Sepkoski 2002
Sister taxa: Araucanites, Eurycephalites, Iniskinites, Lilloettia, Stehnocephalites, Veranadaites
Subtaxa: Xenocephalites araucanus Xenocephalites bearpawensis Xenocephalites grantmackiei Xenocephalites hartsocki Xenocephalites neuquensis Xenocephalites nikitini Xenocephalites vicarius
Type: Macrocephalites neuquensis
Ecology: fast-moving nektonic carnivore
Distribution:
• Temaikan of New Zealand (2 collections)
• Jurassic of Argentina (9), Canada (10: British Columbia), Mexico (1), United States (16: Alaska, Montana, Wyoming)
Total: 38 collections including 40 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.