†Tompophiceras Popov 1961 (ceratite)
Cephalopoda - Ceratitida - Xenodiscidae
Parent taxon: Xenodiscidae according to D. Korn 2006
Sister taxa: Aldanoceras, Arctotirolites, Glyptophiceras, Hanielites, Hypophiceras, Iranites, Kaibinoceras, Kelteroceras, Metophiceras, Paraceltitoides, Penglaites, Phisonites, Shevyrevites, Sutchanites, Xenodiscus
Subtaxa: Tompophiceras extremum, Tompophiceras morpheos, Tompophiceras nielseni, Tompophiceras pascoei
Ecology: nektonic carnivore