Belosaepia

Belosaepia; Temporal range: Eocene PreꞒ Ꞓ O S D C P T J K Pg N
	Belosepia sepioidea
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Order:	Sepiida
Family:	†Belosaepiidae
Genus:	†Belosaepia
Species
	†B. ungula Gabb, 1860 (= B. uncinata, B. harrisi, B. alabamensis voltzi Palmer, 1937); †B. veatchii Palmer, 1937 (= B. alabamensis Palmer, 1937); †B. saccaria Palmer, 1937;

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

^ ^a ^b ^c ^d ^e ^f ^g ^h Yancey, T. E.; Garvie, C. L.; Wicksten, M. (2010). "The Middle Eocene Belosaepia ungula (Cephalopoda: Coleoida) from Texas: Structure, Ontogeny and Function" (PDF). Journal of Paleontology. 84 (2): 267–287. doi:10.1666/09-018R.1.
^ e.g. "Functional Morphology of the Eocene Coleoid Belosepia".

[Yancey2010-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h Yancey, T. E.; Garvie, C. L.; Wicksten, M. (2010). "The Middle Eocene Belosaepia ungula (Cephalopoda: Coleoida) from Texas: Structure, Ontogeny and Function" (PDF). Journal of Paleontology. 84 (2): 267–287. doi:10.1666/09-018R.1.

[2] .g. "Functional Morphology of the Eocene Coleoid Belosepia".

[1]

[2]

Morphology

Ecology

References

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