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Belosaepiidae 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
Suborder:	Sepiina
Family:	†Belosaepiidae
Genera
†Belosaepia †Ceratisepia Meyer, 1993 †Anomalosaepia Weaver & Ciampaglio, 2003 †Mississaepia

Belosaepiidae is an extinct, monospecific family of cephalopods known from the Eocene epoch, and bearing close similarity to the sepiid cuttlefish, whilst retaining the remnants of a belemnite-like guard.

Seagrass Importance To Belosaepiidae

A faunal collection has been found that contains Belosaepiidae and Sepiidae, suggesting that they are likely to have originated from a seagrass environment in the past. As there was a lack of seagrass overtime in the North Atlantic during the late Eocene period, a particular species called belosaepiid went extinct within the family belosipiidae.

References

1. Weaver, P.G.; Dockery, III; Ciampaglio, C.N. (2010). "A new genus of coleoid cephalopod from the Jackson Group (Late Eocene), Hinds County, Mississippi". Palaeontographica Abteilung A. 292 (1–3): 53–63. Archived from the original on 2011-07-19. Retrieved 2011-03-16.
2. 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.
3. Weaver, P.G.; Ciampaglio, C.N. (2003). "A new genus of belosaepiid (Coleoidea) from the Castle Hayne Limestone (Eocene) of Southeastern North Carolina". Journal of Paleontology. 77 (6): 1103–1106. doi:10.1666/0022-3360(2003)077<1103:ANGOBC>2.0.CO;2.
4. George F. Forsey (10 December 2019). "Seagrass and cuttlefish—an historic association". Palaeontologia Electronica. doi:10.26879/881. Retrieved 27 May 2024.

v t e Notable fossil cephalopods (listed by first occurrence)
Cenozoic	The belemnite-cuttlefish-like Belosaepia	Evolution of cephalopods
Mesozoic	Advanced nautiloids Nautilaceae True ammonites Early coleoids Muensterelloidea Proteroctopus Styletoctopus Keuppia Palaeoctopus Paleocirroteuthis Vampyronassa Ceratitid ammonoids late Nautilida Advanced belemnoids Diplobelids: Diplobelus Belemnites: Belemnites Belemnopsis Belemnotheutis
Palaeozoic	Earliest unambiguous cephalopods: Plectronocerida: Plectronoceras, Monoplacophora-like form: Knightoconus? First appearance of long-lasting lineages Goniatite and ceratite ammonoids Probable coleoid ancestor Bactritida Early coleoids: Jeletzkya?, Gordoniconus, Syllipsimopodi Earliest belemnoids: Aulacocerids Phragmoteuthids Early forms the earliest cephalopod group Ellesmerocerida Orthocones: Endocerida, Orthocerida, Actinocerida Brevicones: Ascocerida, Oncocerida Earliest coiled cephalopods: Tarphycerida Spirulid?: Shimanskya
Misidentified	Probable misidentified genera Nectocarididae: (Nectocaris, Nectocotis) Kirengellida Volborthella Shelbyoceras Pohlsepia

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