Rhynchonellata - Rhynchonellida - Petasmariidae

Alternative combinations: Atrypa triplex, Rhynchonella triplex

Full reference: F. McCoy. 1844. A synopsis of the characters of the Carboniferous limestone fossils of Ireland. 207

Belongs to Pugnoides according to S. Weller 1914

See also Brunton and Tilsley 1991 and McCoy 1844

Sister taxa: Pugnax (Pugnoides) tantillus, Pugnoides mazhalaensis, Pugnoides osagensis, Pugnoides quinqueplecis, Pugnoides tardivenus

Ecology: stationary epifaunal suspension feeder

Distribution: found only at Treak Cliff, Castleton (Carboniferous of the United Kingdom)

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Specimen images are retrieved through the ePANDDA API.