Cephalopoda - Ceratitida - Arctoceratidae

Full reference: T. Brühwiler, H. Bucher, and N. Goudemand. 2010. Smithian (Early Triassic) ammonoids from Tulong, south Tibet. Geobios 43:403-431

Belongs to Brayardites according to T. Brühwiler et al. 2012

Sister taxon: Brayardites crassus

Type specimen: PIMUZ 27660. Its type locality is TWB72, Tong La West B, Tulong, which is in a Smithian deep subtidal lime mudstone in the Tulong Formation of China.

Ecology: nektonic carnivore

Average measurements (in mm): shell width 11.1, shell diameter 40.6