Cephalopoda - Ammonitida - Polyptychitidae
Alternative combination: Ringnesiceras (Ringnesiceras) amundense
Full reference: E. Kemper and J. A. Jeletzky. 1979. New stratigraphically and phylogenetically important Olcostephanid (Ammonitida) taxa from the uppermost Lower and Upper Valanginian of Sverdrup Basin. Geological Society of Canada Paper 79(19):1-25
Belongs to Dichotomites (Prodichotomites) according to P. Alsen 2006
See also Bogomolov 1989 and Jeletzky and Kemper 1988
Sister taxa: Dichotomites (Prodichotomites) crassus, Dichotomites (Prodichotomites) ellefensis, Dichotomites (Prodichotomites) flexicosta, Dichotomites (Prodichotomites) mackneyi, Dichotomites (Prodichotomites) polytomus, Prodichotomites complanatus, Prodichotomites fissuratus, Prodichotomites glaber, Prodichotomites grotriani, Prodichotomites ivanovi, Prodichotomites perovalis, Prodichotomites pfaffi, Prodichotomites robustus, Prodichotomites undulatus, Ringnesiceras (Ringnesiceras)
Type specimen: Its type locality is GSC Loc93755 - Amund Ringnes Island [Deer Bay Fm], which is in a Valanginian marine siliciclastic in the Deer Bay Formation of Canada.
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Canada (2: Northwest Territories collections)
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.