Benacoceras

Benacoceras; Temporal range: Kimmeridgian PreꞒ Ꞓ O S D C P T J K Pg N
Conservation status
	Fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Ammonoidea
Superfamily:	Perisphinctaceae
Family:	Aspidoceratidae
Genus:	Benacoceras; Spath, 1925
Species
	None Cataloged

Benacoceras is a strongly ribbed, evolute ammonite from the Late Jurassic, coiled so that all whorls are exposed. Ribbing is biplicate, with very short secondaries. The venter, the outer rim, is smooth, at least on the outer whorl.

References

Notes

^ Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28. {{cite web}}: Cite has empty unknown parameter: |coauthors= (help)
^ "Paleobiology Database - Benacoceras". Retrieved 2014-05-28. {{cite web}}: Cite has empty unknown parameter: |coauthors= (help)

Bibliography

Treatise on Invertebrate Paleontology, Part L; Ch. Mesozoic Ammonoidea. Geological Soc of America and U Kansas Press, R.C Moore (ed)

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[Sepkoski_Ceph-1] Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28. {{cite web}}: Cite has empty unknown parameter: |coauthors= (help)

[fossilworks-2] "Paleobiology Database - Benacoceras". Retrieved 2014-05-28. {{cite web}}: Cite has empty unknown parameter: |coauthors= (help)

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