Cephalopoda - Nautilida - Rhiphaeoceratidae
Full reference: V. E. Ruzhentsev and V. N. Shimanskiy. 1954. Nizhnepermskie svernutye i sognutye Nautiloidei yuzhnogo Urala. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 50:1-150
Parent taxon: Pleuronautiloidea according to D. Korn 2025
See also Shchedukhin 2022 and Teichert et al. 1964
Sister taxa: Aktubonautilidae, Foordiceratidae, Gzheloceratidae, Metacoceratidae, Mosquoceratidae, Pleuronautilidae
Subtaxa: Alibashinautilus Eximioceras Pararhiphaeoceras Rhiphaeoceras Rhiphaeonautilus Sholakoceras
Type: Rhiphaeoceras
Ecology: nektobenthic carnivore
Distribution:
• Permian of Azerbaijan (1 collection), China (2), Iran (4), Italy (2), Kazakhstan (2), the Russian Federation (4), Tajikistan (1)
Total: 16 collections including 26 occurrences