Kingdom Animalia Class Cephalopoda Order Oncocerida Rank Genus | Phylum Mollusca Subclass Nautiloidea Family Polyelasmoceratidae | |
Macrodomoceras is a genus of oncocerids, family Polyelasmoceratidae, from the Middle Devonian of Australia.
The shell of Macrodomoceras is a compressed, endogastric cyrtocone, i.e section higher than wide and curved with the ventral side concave, with a subtriangular cross section. The siphuncle is ventral, marginal, with continuous actinosiphonate lamellae.
Macrodomoceras resembles Danaoceras in its subtriangular cross section, but its sutures have bluntly pointed ventral saddles.
References
Macrodomoceras Wikipedia(Text) CC BY-SA