Cephalopoda - Ammonitida - Polyptychitidae
Alternative combinations: Olcostephanus (Polyptychites) ramulicosta, Polyptychites ramulicosta, Siberites ramulicosta
Synonym: Polyptychites densicosta Pavlov 1914
Belongs to Polyptychites (Polyptychites) according to P. Alsen 2006
See also Bogomolov 1989 and Jeletzky and Kemper 1988
Sister taxa: Polyptychites (Polyptychites) ascendens, Polyptychites (Polyptychites) beani, Polyptychites (Polyptychites) conferticosta, Polyptychites (Polyptychites) keyserlingi, Polyptychites (Polyptychites) michalskii, Polyptychites (Polyptychites) plenus, Polyptychites (Polyptychites) polyptychus, Polyptychites (Polyptychites) rawsoni, Polyptychites (Polyptychites) robertsi, Polyptychites (Polyptychites) tuberculatus
Average measurements (in mm): shell diameter 44.9
Distribution:
• Cretaceous of Greenland (1 collection), the Russian Federation (9), Svalbard and Jan Mayen (2)
Total: 12 collections including 13 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.