Porosoma Cotteau 1856 (sea urchin)

Echinoidea - Calycina - Phymosomatidae

Invalid subtaxa: Coptosoma Desor 1855 [replaced name], Microsoma Cotteau 1886

Parent taxon: Phymosomatidae according to J. F. Geys 1980

See also Cooke 1953, Cooke 1959, Fell and Pawson 1966, Sepkoski 2002 and Wagner 1972

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

Subtaxa: Porosoma cribrum Porosoma fifei Porosoma maeandrinum Porosoma reesidei

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Type: Cyphosoma cribrum

Ecology: slow-moving low-level epifaunal omnivore

Distribution:

• Eocene of Italy (1 collection), Turkey (1), the United Kingdom (1)

• Paleocene of Mexico (1)

• Cretaceous of the Netherlands (3), Spain (5), Switzerland (1), United States (3: Wyoming)

Total: 16 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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