Allonautilus

Taxobox
name = "Allonautilus"

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image_caption = "Allonautilus scrobiculatus" shell with periostracum removed
regnum = Animalia
phylum = Mollusca
classis = Cephalopoda
ordo = Nautilida
familia = Nautilidae
genus = "Allonautilus"
genus_authority = Ward & Saunders, 1997
subdivision_ranks = Species
subdivision ="Allonautilus perforatus""Allonautilus scrobiculatus" (type)

The genus "Allonautilus" contains two species of nautiluses, which differ significantly in terms of morphology from those placed in the sister taxon "Nautilus". "Allonautilus" is now thought to be a descendant of "Nautilus" and the latter paraphyletic.

External links

* [http://www.findarticles.com/p/articles/mi_qa3790/is_199711/ai_n8768905 "Allonautilus": A new genus of living nautiloid cephalopod and its bearing on phylogeny of the Nautilida]