Gastropoda - Neritoidea - Phenacolepadidae

Alternative spelling: Hyalorisia

Parent taxon: Plesiothyreus according to K. C.. Vaught et al. 1989

See also Sepkoski 2002

Sister taxa: Plesiothyreus ancyliformis, Plesiothyreus parmophoroides

Subtaxa: none

Ecology: epifaunal omnivore

Distribution: there are no occurrences of Plesiothyreus (Hyalorisia) in the database

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