Allonautilus
Allonautilus | |
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Allonautilus scrobiculatus shell with periostracum removed | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Order: | Nautilida |
Family: | Nautilidae |
Genus: | Allonautilus Ward & Saunders, 1997 |
Species | |
Allonautilus perforatus |
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.
References
- ↑ Ward, P.D. & W.B. Saunders 1997. Allonautilus: a new genus of living nautiloid cephalopod and its bearing on phylogeny of the Nautilida. Journal of Paleontology 71(6): 1054–1064.