''Crania'' is an extinct genus of brachiopods that lived during the Upper
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
.
Description
''Crania'' has small (up to 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.
Reassigned species
As the genus ''Crania'' was erected early on in
paleontology
Paleontology, also spelled as palaeontology or palæontology, is the scientific study of the life of the past, mainly but not exclusively through the study of fossils. Paleontologists use fossils as a means to classify organisms, measure ge ...
, many species have since be
reassigned.
See also
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List of brachiopod genera
This is a list of brachiopod genera which includes both Extinction, extinct (fossil) forms and Extant taxon, extant (living) genera (bolded). Names are according to the conventions of the International Code of Zoological Nomenclature.
A
*''Aal ...
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Taxonomy of commonly fossilised invertebrates
The taxonomy of commonly fossilized invertebrates combines both traditional and modern paleozoological terminology. This article compiles various invertebrate taxa in the fossil record, ranging from protists to arthropods. This includes groups t ...
References
Illustrations conchyliologiques ou description et figures de toutes les coquilles connues vivantes et fossiles, classées suivant le système de Lamarck modifié d'après les progrès de la science et comprenant les genres nouveaux et les espèces rècemment découvertes. Tome2 (1842). Jean-Charles Chenu, 1842
Prehistoric brachiopod genera
Campanian genus first appearances
Maastrichtian genus extinctions
Craniata
Brachiopods of Asia
Paleozoic life of New Brunswick
Paleozoic life of Quebec
Paleozoic life of Yukon
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