Crania Temporal range:
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Brachiopoda |
Class: | Craniata |
Order: | Craniida |
Family: | Craniidae |
Genus: | †
Crania Retzius, 1781 |
Species | |
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Crania is an extinct genus of brachiopods that lived during the Upper Cretaceous.
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]
As the genus Crania was erected early on in paleontology, many species have since be reassigned. [1] [3]