Cephalopoda - Goniatitida - Spirolegoceratidae
Full reference: W. W. Nassichuk. 1970. Permian ammonoids from Devon and Melville Islands, Canadian Arctic Archipelago. Journal of Paleontology 44(1):77-97
Belongs to Sverdrupites according to T. B. Leonova and O. P. Shilovsky 2014
See also Leonova 2002, Leonova and Shilovsky 2007 and Nassichuk 1970
Sister taxa: Sverdrupites baraiensis, Sverdrupites bogoslovskayae, Sverdrupites harkeri
Type specimen: GSC 24224. Its type locality is GSC C-1930, St. Arnaud Hils, Sabine Peninsula, Melville Island, which is in a Roadian coastal sandstone in the Assistance Formation of Canada.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 38.5
Distribution:
• Permian of Canada (2: Nunavut collections), the Russian Federation (1)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.