Cephalopoda - Ammonitida - Acanthoceratidae

Full reference: W. A. Cobban. 1972. New and little-known ammonites from the Upper Cretaceous (Cenomanian and Turonian) of the western interior of the United States. United States Geological Survey Professional Paper 699:1-24

Belongs to Nigericeras according to W. A. Cobban 1972

Sister taxa: Nigericeras gadeni, Nigericeras intermedium, Nigericeras jacqueti, Nigericeras ogojaense

Type specimen: USNM 166396, a shell. Its type locality is USGS Mesozoic D6756, Baca County, which is in a Cenomanian carbonate limestone in the Greenhorn Limestone Formation of Colorado.

Ecology: fast-moving nektonic carnivore

Distribution: found only at USGS Mesozoic D6756, Baca County

Show more details

Specimen images are retrieved through the ePANDDA API.