Cephalopoda - Ammonitida - Acanthoceratidae
Alternative combinations: Acanthoceras coloradoensis, Watinoceras (Watinoceras) coloradoense
Belongs to Watinoceras according to M. Wilmsen and E. Nagm 2014
See also Chancellor et al. 1994, Cobban 1983, Cooper 1978, Gale et al. 2005, Ifrim and Stinnesbeck 2007, Stelck et al. 2002 and Wilmsen and Nagm 2013
Sister taxa: Watinoceras (Watinoceras), Watinoceras amudariense, Watinoceras devonense, Watinoceras jaekeli, Watinoceras odonnelli, Watinoceras reesidei, Watinoceras thompsonense
Type specimen: Its type locality is Bridge Creek Limestone, Greenhorn Fm, which is in a Turonian marine limestone in the Greenhorn Formation of Colorado
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 44.4
Distribution:
• Cretaceous of Angola (1 collection), Brazil (2), Canada (1: British Columbia), Colombia (2), Germany (1), Mexico (3), United States (6: Arizona, Colorado, Minnesota), Venezuela (1)
Total: 17 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.