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・ Hemimyzon macroptera
・ Hemimyzon megalopseos
・ Hemimyzon nanensis
・ Hemimyzon nujiangensis
・ Hemimyzon papilio
・ Hemimyzon pengi
・ Hemimyzon pumilicorpora
・ Hemimyzon sheni
・ Hemimyzon taitungensis
・ Hemimyzon tchangi
・ Hemimyzon yaotanensis
・ Hemin
・ Hemin (given name)
・ Hemin Desai
・ Hemin Mukriyani
Heminautilus
・ Heming
・ Heming (company)
・ Heming Olaussen
・ Hemingbrough
・ Hemingbrough Minster
・ Hemingbrough railway station
・ Hemingby
・ Hemingfield
・ Hemingfold Meadow
・ Hemingford Abbots
・ Hemingford Grey
・ Hemingford House
・ Hemingford, Nebraska
・ Hemingfordian North American Stage


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Heminautilus : ウィキペディア英語版
Heminautilus


''Heminautilus'' is an extinct nautiloid genus from the nautilacean family Cymatoceratidae that lived during the early Cretaceous ( 1964). Nautiloids are a subclass of shelled cephalopods that were once diverse and numerous but are now represented by only a handful of species.
''Heminautilus'' has a discoidal compressed involute shell with flanks converging on a narrow flattened outer margin, the venter. Whorls are higher than wide. The suture is sinuous with a ventral lobe, subtriangular saddles on the ventral shoulders, broad lateral lobes, and narrow rounded saddles on the umbilical shoulders. The siphuncle is subcentral ( 1964).
==See also==

* List of nautiloids

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Heminautilus」の詳細全文を読む



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