Hannaoceras
Hannaoceras is a genus belonging to the extinct subclass of cephalopods known as ammonites. Specifically it belongs in the order Ceratitida.
| Hannaoceras Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ceratitida |
| Family: | †Trachyceratidae |
| Genus: | †Hannaoceras Tomlin 1931 |
The family to which Hannaoceras belongs, the Trachyceratidae, has more or less involute, highly ornamented shells and ceratitic to ammonitic sutures. Age range: 232.0 to 221.5 Ma.
References
- Notes
- Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 28 May 2014.
- Bibliography
- Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.
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