Rachiosoma Pomel 1883 (sea urchin)

Echinoidea - Calycina - Phymosomatidae

Synonym: Pomelechinus Checchia-Rispoli 1946 [objective synonym]

Full reference: A. Pomel. 1883. Classification méthodique des échinides vivants et fossiles. Adolphe Jourdan, Alger 1-131

Parent taxon: Phymosomatidae according to J. F. Geys and J. Jagt 1986

See also Cooke 1953, Fell and Pawson 1966 and Sepkoski 2002

Sister taxa: Acanthechinus, Actinophyma, Aeolopneustes, Cosmocyphus, Gauthieria, Glyptocidaris, Glyptocyphus, Hemithylus, Jacquiertia, Lambertechinus, Leptechinus, Micropsis, Narindechinus, Phymosoma, Pleurodiadema, Plistophyma, Polyplacidia, Porosoma, Thylechinus, Winkleria

Subtaxa: Rachiosoma corollare Rachiosoma hondoensis Rachiosoma mortoni

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Ecology: slow-moving low-level epifaunal omnivore

Distribution:

• Cretaceous of Belgium (8 collections), Egypt (13), France (2), Germany (1), Israel (1), Kazakhstan (1), Spain (1), United States (4: Alabama, Mississippi, Texas)

Total: 31 collections including 32 occurrences

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Specimen images are retrieved through the ePANDDA API.


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