Biology:Belosaepia
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Short description: Extinct genus of molluscs
| Belosaepia | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Sepiida |
| Family: | †Belosaepiidae |
| Genus: | †Belosaepia |
| Species | |
Belosaepia, occasionally incorrectly Belosepia,[2] is an extinct genus of cuttlefish-like cephalopod known from the Eocene.[1]
Morphology
Species of the genus Belosaepia reached 18 centimetres (7.1 in) in length and 5 centimetres (2.0 in) across and had a large siphuncle that penetrated its oblique septa.[1] The shell was endogastrically coiled.[1] It had a small belemnite-like guard, which took the form of a short horn at the posterior end of the shell;[1] usually, only a small portion of the shell closest to the guard is preserved. The chambers in the shell closely resemble those present in the cuttlebone of modern cuttlefish.[1]
Ecology
Belosaepia lived close to the sea floor.[1]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Yancey, T. E.; Garvie, C. L.; Wicksten, M. (2010). "The Middle Eocene Belosaepia ungula (Cephalopoda: Coleoida) from Texas: Structure, Ontogeny and Function". Journal of Paleontology 84 (2): 267–287. doi:10.1666/09-018R.1. http://www.lakeneosho.org/Belosaepia/pdf/Growth%20and%20skeleton%20characters%20of%20Belosaepia.pdf.
- ↑ e.g. "Functional Morphology of the Eocene Coleoid Belosepia". http://gsa.confex.com/gsa/2007AM/finalprogram/abstract_123930.htm.
Notable fossil cephalopods (listed by first occurrence) | |||||||||
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| Cenozoic |
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| Mesozoic |
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| Palaeozoic |
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| Cambrian |
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Wikidata ☰ Q4884559 entry
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