Cephalopoda - Ammonitida - Polyptychitidae
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
Parent taxon: Ringnesiceras according to J. A. Jeletzky and E. Kemper 1988
See also Kemper and Jeletzky 1979
Sister taxa: Dichotomites (Prodichotomites) amundensis, 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
Subtaxa: Ringnesiceras (Ringnesiceras) pseudopolyptychites
Ecology: fast-moving nektonic carnivore
Distribution: there are no occurrences of Ringnesiceras (Ringnesiceras) in the database