Cephalopoda - Ammonitida - Polyptychitidae
Alternative combinations: Ammonites bidichotomus, Polyptychites (Dichotomites) bidichotomus
Synonyms: Amundiptychites chatangensis Golbert and Klimova 1983, Amundiptychites sachsi Golbert and Klimova 1983, Dichotomites (Dichotomites) involutus Burdykina 1983, Dichotomites (Dichotomites) romani Kemper 1978, Dichotomites (Prodichotomites) hollwedensis Kemper 1978, Dichotomites mangyschlakensis Luppov 1983, Dichotomites toryschensis Luppov 1983, Polyptychites frechi Koenen 1902, Polyptychites tardescissus Koenen 1902, Polyptychites terscissus Koenen 1902, Prodichotomites hollwedensis Kemper 1978, Ringnesiceras (Elleficeras) ellefense Kemper and Jeletzky 1979
Belongs to Dichotomites (Dichotomites) according to P. Alsen 2006
See also Bogomolov 1989 and Jeletzky and Kemper 1988
Sister taxon: Dichotomites (Dichotomites) krausei
Distribution:
• Cretaceous of Canada (3: Northwest Territories collections), the Russian Federation (7), Svalbard and Jan Mayen (1)
Total: 11 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.