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Allonautilus scrobiculatus.png
Allonautilus scrobiculatus shell with periostracum removed
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Nautilida
Family: Nautilidae
Genus: Allonautilus
Ward & Saunders, 1997

2, see text

The genus Allonautilus contains two species of nautiluses, which have a significantly different morphology from those placed in the sister taxon Nautilus.[1] Allonautilus is now thought to be a descendant of Nautilus and the latter paraphyletic.

Live individuals of the genus have only been collected in Papua New Guinea and the Solomon Islands. Little is known about their biology because they live in deep waters,[2] whereas the more well-understood Nautilus genus lives closer to the surface.



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