Cephalopoda - Ammonitida - Collignoniceratidae
Alternative combination: Barroisiceras (Forresteria) hobsoni
Full reference: J. B. Reeside. 1932. The Upper Cretaceous ammonite genus Barroisiceras in the United States. United States Geological Survey Professional Paper 170(B):9-21
Belongs to Forresteria (Forresteria) according to P. L. Sealey and S. G. Lucas 2019
See also Kennedy and Wright 1983
Sister taxa: Forresteria (Forresteria) alluaudi, Forresteria (Forresteria) camerounensis, Forresteria (Forresteria) madagascariensis, Forresteria (Forresteria) serrata
Type specimen: Its type locality is Pueblo [Fort Hays Limestone, Niobrara Fm], which is in a Turonian deep subtidal shelf limestone in the Niobrara Formation of Colorado
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of South Africa (1 collection), United States (1: Colorado)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.