Cephalopoda - Orthoceratoidea - Brachycycloceratidae

Full reference: S. Niko, A. Pillevuit, and T. Nishida. 1996. Early Late Permian (Wordian) non-ammonoid cephalopods from the Hamrat Duru Group, central Oman Mountains. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 183:522-527

Belongs to Brachycycloceras according to S. Niko et al. 1996

Sister taxon: Brachycycloceras cyclophorum

Type specimen: MGL 72026. Its type locality is Rustaq, talus collection, central Oman Mountains, which is in a Roadian basinal (carbonate) packstone in the Hamrat Duru Formation of Oman.

Ecology: fast-moving nektonic carnivore