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Porosoma Cotteau 1856 (sea urchin)

Echinoidea - Calycina - Phymosomatidae

PaleoDB taxon number: 32983

Invalid subtaxa: Coptosoma Desor 1855 [replaced name] (no. 377625), Microsoma Cotteau 1886 (no. 294392)

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

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

Subtaxa: Porosoma cribrum, Porosoma fifei, Porosoma lamberti, Porosoma maeandrinum, Porosoma reesidei

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Type: Cyphosoma cribrum

Ecology: slow-moving low-level epifaunal omnivore