Allonautilus
| Allonautilus | |
|---|---|
| |
| Allonautilus scrobiculatus shell with periostracum removed | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | Nautilida |
| Family: | Nautilidae |
| Genus: | Allonautilus Ward & Saunders, 1997 |
| Species | |
|
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, rendering the latter genus 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 better-understood genus Nautilus lives closer to the surface.
Species:
- Allonautilus perforatus
- Allonautilus scrobiculatus (type) – crusty nautilus
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.
- ^ Groth, J. G., et al. (2015). The mitochondrial genome of Allonautilus (Mollusca: Cephalopoda): Base composition, noncoding-region variation, and phylogenetic divergence. American Museum Novitates 3834 1-18.
External links
- Allonautilus. CephBase.