Porosoma Cotteau 1856 (sea urchin)

Echinoidea - Calycina - Phymosomatidae

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

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

See also Böhm 1891, Clark and Twitchell 1915, Cooke 1941, Cooke 1953, Cooke 1959, Fell and Pawson 1966, Sepkoski 2002 and Wagner 1972

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

Subtaxa: Cyphosoma (Coptosoma) singulare Porosoma cribrum Porosoma fifei Porosoma lamberti Porosoma maeandrinum Porosoma reesidei

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Type: Cyphosoma cribrum

Ecology: slow-moving low-level epifaunal omnivore

Distribution:

• Eocene of Italy (1 collection), Qatar (2), Turkey (1), the United Kingdom (1)

• Paleocene of Mexico (1)

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

Total: 19 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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