''Prostacheoceras'' is genus of

ammonoid Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) ...

cephalopods belonging to the

Vidrioceratidae Vidrioceratidae is one of three families of the Cyclolobaceae Superfamily. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish Cuttlefish or cuttles are marine mollusc ...

family. Species belonging to this genus lived in early to middle Permian.

Species and distribution

* ''Prostacheoceras alter'' Leonova, 1989: Artinskian - Roadian of Tajikistan and Thailand * ''Prostacheoceras benedictinum'' Gemmellaro, 1887: Wordian of Italy * ''Prostacheoceras burnense'' Tumanskaia, 1931: Roadian of Russia (Crimea) * ''Prostacheoceras chinense'' Wang, 1983: Asselian - Wordian of China (Xinjiang). Nomen nudum, as it is based only on fragmentary specimen. Unsure age assignment. * ''Prostacheoceras darvasicum'' Leonova, 1992: Kungurian of Tajikistan * ''Prostacheoceras dentatum'' Ruzhentsev, 1938: synonym of ''P. juresanense'' * ''Prostacheoceras geminum'' Ruzhentsev, 1938: synonym of ''P. juresanense'' * ''Prostacheoceras juresanense'' Maksimova, 1935: Asselian of Kazakhstan (South Urals), Russia (South Urals) * ''Prostacheoceras langi'' Termier & Termier, 1970: Artinskian - Kungurian of Afghanistan and China (Xinjiang) * ''Prostacheoceras longilobatum'' Liang, 1982: Wordian of China (Jilin) * ''Prostacheoceras multidentatum'' Tumanskaia, 1931: Roadian of Russia (Crimea). Nomen nudum. * ''Prostacheoceras oschense'' Tumanskaia, 1938: Roadian - Wordian of Tajikistan * ''Prostacheoceras principale'' Bogoslovskaia & Popov, 1986: Asselian of Kazakhstan (South Urals) * ''Prostacheoceras saundersi'' Nassichuk, 1977: Wordian of Canada (British Columbia) * ''Prostacheoceras shaoyangense'' Zhou, 1987: Wordian - Capitanian of China (Hunan) * ''Prostacheoceras skinneri'' Miller, 1945: Kungurian of Malaysia and USA (Texas) * ''Prostacheoceras strictum'' Bogoslovskaia, 1978: Asselian of Tajikistan * ''Prostacheoceras tauricum'' Tumanskaia, 1917: Roadian of Russia (Crimea)

References

Goniatitida genera Cyclolobaceae Permian ammonites Ammonites of Europe Cisuralian first appearances Guadalupian genus extinctions Paleozoic life of British Columbia {{Goniatitida-stub