| 词条 | Aktjubocheilus |
| 释义 |
| name = Aktjubocheilus | fossil_range = Famennian) | image = | regnum = Animalia | phylum = Mollusca | classis = Cephalopoda | subclassis = Nautiloidea | ordo = Oncocerida | familia = Acleistoceratidae | genus = Aktjubocheilus | genus_authority = }} Aktjubocheilus is a genus of oncocerid nautiloids from the Upper Devonian (M Famenian) included in the Acleistoceratidae, a family characterized by depressed, or rarely compressed, exogastric brevicones and cyrtocones. References
1 : Prehistoric nautiloid genera |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。