Cephalopoda - Nautilida - Tainoceratidae
Full reference: T. Ishibashi, N. Nakornsri, and K. Nagai. 1994. Permian-Triassic boundary and fauna at Doi Pha Phlung, northern Thailand. Memoirs of the Faculty of Science, Kyushu University, Series D, Earth and Planetary Science 28(2):23-40
Parent taxon: Tainoceratidae according to T. Ishibashi et al. 1994
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, Sibyllonautilus, Sinotitanoceras, Tainionautilus, Tainoceras, Tanchiashanites, Thuringionautilus, Tirolonautilus, Trachynautilus, Tylonautilus, Pseudofoordiceras, Heurekoceras, Hunanoceras
Subtaxa: Siamnautilus ruchae
Type: Siamnautilus ruchae
Ecology: nektobenthic carnivore