Cephalopoda - Nautilida - Tainoceratidae
Parent taxon: Tainoceratidae according to C. Teichert et al. 1964
Sister taxa: Anoploceras, Anthodiscoceras, Araxonautilus, Arctonautilus, Aulametacoceras, Clavinautilus, Cooperoceras, Encoiloceras, Enoploceras, Eulomacoceras, Germanonautilus, Gzheloceras, Hefengnautilus, Hexagonites, Holconautilus, Huanghoceras, Lichuanoceras, Lirometacoceras, Meixianlingites, Metacoceras, Mojsvaroceras, Neoclavinautilus, Neotainoceras, Nodonautilus, Nodopleuroceras, Parametacoceras, Paratainoceras, Paratainonautilus, Phaedrysmocheilus, Phloioceras, Pleuronautilus, Pseudometacoceras, Pseudotemnocheilus, Seironautilus, Siamnautilus, Sibyllonautilus, Sinotitanoceras, Tainionautilus, Tanchiashanites, Thuringionautilus, Tirolonautilus, Trachynautilus, Tylonautilus, Pseudofoordiceras, Heurekoceras, Hunanoceras
Subtaxa: Tainoceras abukumaense, Tainoceras balestense, Tainoceras carinatum, Tainoceras cavatum, Tainoceras changlingpuense, Tainoceras clydense, Tainoceras comptum, Tainoceras debile, Tainoceras duttoni, Tainoceras gibbosum, Tainoceras guizhouense, Tainoceras hunanense, Tainoceras kitakamiense, Tainoceras lateronodosum, Tainoceras malsineri, Tainoceras mingshanense, Tainoceras murrayi, Tainoceras nebrascense, Tainoceras orientale, Tainoceras rotundatum, Tainoceras schellbachi, Tainoceras sexlineatum, Tainoceras toulai, Tainoceras trimuense, Tainoceras unklesbayi, Tainoceras wyomingense
Ecology: nektobenthic carnivore