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Craniscus

From Wikipedia, the free encyclopedia

Craniscus
Temporal range: Upper Jurassic–Recent
Craniscus tripartitus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Brachiopoda
Class: Craniata
Order: Craniida
Family: Craniidae
Genus: Craniscus
Dall, 1871
Species

Craniscus is a genus of small brachiopods (lamp shells). The shell is approximately round to square with one side rounded. The ventral valve is approximately flat and attached to the underground by the entire surface. The outside of the dorsal valve is more or less conical, the inside is divided by three ridges that join in the center.[1]

References

[edit]
  1. ^ Lee, D.E.; Burton, C.H.C. (1986). "Neocrania n.gen., and a revision of Cretaceous-Recent brachiopod genera in the family Craniidae". Bulletin of the British Museum (Natural History), Geology Series. 40: 141–160. ISSN 0968-0462.