Definition of Tarphycerids. Meaning of Tarphycerids. Synonyms of Tarphycerids

- tightly coiled, but evolute with all whorls showing. The body chamber of tarphycerids is typically long and tubular, as much as half the length of the containing...
- Ordovician of North America and Australia and is one of the earlier tarphycerids found in the Lower Ordovician El Paso Group in New Mexico. Aphetoceras...
- nautiloid genus from the Middle Ordovician and type for the Lituitidae (a tarphycerid family) that in some more recent taxonomies has been classified with...
- Trocholites, an tarphycerid from the Upper Ordovician of Wisconsin...
- Magdoceras is a genus of Late/Upper Silurian tarphycerids, a kind of nautiloid cephalopod with a coiled s****. Magdoceras Fossilworks entry. Jack Sepkoski...
- as evolutionarily unlikely. Lituites and the Lituitidae are derived tarphycerids and belong to a separate evolutionary branch of nautilioids. The number...
- nautilod cephalopods included in the Barrandeocerina (a suborder of tarphycerids sensu lato), distinguished by mostly cyrtoconic as well as gyroconic...
- family of Middle and Upper Ordovician Barrandeocerina, (a suborder of tarphycerids), characterized by curved or coiled, smooth, transversely marked, or...
- The Lituitidae are a family of evolved tarphycerids characterized by a long orthoconic section that follows a coiled juvenile portion at the apex, along...
- Cliftonoceras is a genus of barrandeoceroid type tarphycerids from the Uranoceratidae characterized by a smooth gyroconic s**** with a rounded dorsum and...