Eocrinoidea - Rhipidocystidae

Alternative spelling: Petalocystis

Full reference: J. Sprinkle. 1973. Morphology and evolution of blastozoan echinoderms. Harvard University Museum of Comparative Zoology, Special Publication 1-283

Parent taxon: Rhipidocystidae according to J. Dean and A. B. Smith 1998

See also Lewis et al. 1987 and Sprinkle 1973

Sister taxa: Batherocystis, Durhamicystis, Mandalocystis, Rhipidocystis

Subtaxa: Petalocystites ikecanensis

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Type: Petalocystites ikecanensis

Distribution: found only at UCMP loc. D-5680, Bare Mountain (Ordovician of Nevada)

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Specimen images are retrieved through the ePANDDA API.