Shelbyoceras
| Shelbyoceras | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| (unranked): | Monoplacophora |
| Order: | †Archinacelloidea |
| Family: | †Shelbyoceridae |
| Genus: | †Shelbyoceras |
Shelbyoceras is a genus of Cambrian monoplacophora which was one of the genera mistaken for a cephalopod, since the characteristics differentiating monoplacophora from cephalopods are few. Shelbyoceras was reclassified based on a depressed groove that forms a band around the shell, which is similar to a feature seen in Hypseloconus[1] (with whom it may be synonymous).[2] The septa in this genus are either closely or irregularly spaced.[1]
References
- 1 2 Stinchcomb, B. L. (1980). "New Information on Late Cambrian Monoplacophora Hypseloconus and Shelbyoceras (Mollusca)". Journal of Paleontology. Paleontological Society. 54 (1): 45–49. doi:10.2307/1304159. JSTOR 1304159.
- ↑ Stinchcomb, B. L.; Echols, D. J. (1966). "Missouri Upper Cambrian Monoplacophora Previously Considered Cephalopods". Journal of Paleontology. 40 (3): 647–650. doi:10.2307/1301748. JSTOR 1301748.
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