Crania (brachiopod)

Crania is an extinct genus of brachiopods that lived during the Upper Cretaceous.

Crania
Temporal range: Campanian–Maastrichtian[1]
Isocrania costata from the Maastrichtian of the Netherlands.
Scientific classification
Kingdom: Animalia
Clade: Lophophorata
Phylum: Brachiopoda
Class: Craniata
Order: Craniida
Family: Craniidae
Genus: †Crania
Retzius, 1781
Species
  • C. craniolaris (Linnaeus, 1758) type species = C. numulus, Anomia craniolaris, Nummulus brattenburgensis (Brattenburgpenningar)[2]
  • C. antiqua Defrance, 1818
  • C. armata
  • C. aspera
  • C. bipartita
  • C. gracilis
  • C. intermedia
  • C. obsoleta
  • C. personata
  • C. porosa
  • C. prisca
  • C. proavia
  • C. ringens

Description

Crania has small (up to 2 centimetres or 0.79 inches in diameter) circular shells. The dorsal valve is smooth or has slight pustules. The ventral valve is only attached posteriorly and has a thickened flat grainy rim.[1]

Reassigned species

As the genus Crania was erected early on in paleontology, many species have since be reassigned.[1][3]

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See also

References
  1. Lee, D. E.; Brunton, 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 (4): 141–160.
  2. Emig, Christian C. (2009). "Nummulus brattenburgensis and Crania craniolaris (Brachiopoda, Craniidae)". Carnets de Géologie (8). doi:10.4267/2042/29780.
  3. Moore, R.C. (1965). Brachiopoda. Treatise on Invertebrate Paleontology. Part H., Volume 1. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. pp. H267, H286, H288, H290, H463. ISBN 0-8137-3015-5.


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