Cephalopoda - Ammonitida - Nostoceratidae
Alternative combination: Ancyloceras cheyennense
Belongs to Didymoceras according to W. J. Kennedy and W. A. Cobban 1994
Sister taxa: Didymoceras angulatum, Didymoceras aurarium, Didymoceras awajiense, Didymoceras binodosum, Didymoceras californicum, Didymoceras cheyenense, Didymoceras cochleatus, Didymoceras donezianum, Didymoceras draconis, Didymoceras hidakense, Didymoceras hornbyense, Didymoceras nebrascense, Didymoceras newtoni, Didymoceras nicolletii, Didymoceras platycostatum, Didymoceras stevensoni, Didymoceras subtuberculatum, Didymoceras tenuicostatus, Didymoceras tortus, Didymoceras tricostatus, Didymoceras umbilicatus, Didymoceras uncus, Didymoceras vancouverensis, Didymoceras vespertinus, Didymoceras whiteavesi, Nostoceras (Didymoceras) attenuatum, Nostoceras (Didymoceras) densecostatum, Nostoceras (Didymoceras) obtusum, Nostoceras (Didymoceras) postremum, Nostoceras (Didymoceras) varium, Emperoceras cooperii
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Nigeria (1 collection), United States (7: Colorado, Delaware, Montana, Nebraska, New Mexico)
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.