Crania (brachiopod) explained

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

Description

Crania has small (up to 2cm (01inches) 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] [2]}

C. abnormis = Ancistrocrania abnormis C. austriaca = Danocrania austriaca C. barbata = Isocrania barbata C. bredai = Ancistrocrania bredai C. bromelli = Ancistrocrania bromelli C. nysti = Novocrania nysti C. californica = Novocrania californica C. comosa = Ancistrocrania comosa C. costata = Isocrania costata C. davidsoni = Ancistrocrania davidsoni C. egnabergensis = Isocrania egnabergensis C. guelhemensis = Danocrania geulhemensis C. hagenowi = Danocrania hagenowi C. hawaiiensis = Novocrania hawaiiensis C. kressenbergensis = Danocrania kressenbergensis C. lecontei = Novocrania lecontei C. nysti = Novocrania nysti C. parisiensis = Ancistrocrania parisiensis

C. philippinensis = Novocrania philippinensis C. pourtalesi = Novocrania pourtalesi C. permiana = Prorichthofenia permiana C. quadrangularis = Ancistrocrania quadrangularis C. quadrata = Pseudolingula quadrata C. retzii = Ancistrocrania retzii C. rostrata = Novocrania anomala C. spiculata = Acanthocrania spiculata C. spinulosa = Danocrania spinulosa C. stobaei = Ancistrocrania stobaei C. striata = Discina striata C. suessi Bosquet, 1859 = Ancistrocrania suessi C. suessi Reeve, 1862 = Novocrania japonica C. tripartita = Craniscus tripartita C. tuberculata = Danocrania tuberculata C. turbinata = Novocrania anomala C. unguiculata = Siphonotreta unguiculata C. valdiviae = Novocrania valdiviae

See also

• List of brachiopod genera
• Taxonomy of commonly fossilised invertebrates

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

Notes and 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. Book: Moore, R.C.. 1965. Brachiopoda. Geological Society of America/University of Kansas Press. Treatise on Invertebrate Paleontology. Part H., Volume 1. H267, H286, H288, H290, H463 . Boulder, Colorado/Lawrence, Kansas. 0-8137-3015-5.