Stephanozyga subnodosa Knight 1930 (snail)

Gastropoda - Prosobranchia - Pseudozygopleuridae

Alternative combinations: Palaeostylus (Stephanozyga) subnodosa, Pseudozygopleura (Stephanozyga) subnodosa

Full reference: J. B. Knight. 1930. The gastropods of the St. Louis, Missouri, Pennsylvanian outlier: the Pseudozygopleurinae. Journal of Paleontology Memoir 4(4):1-88

Belongs to Stephanozyga according to P. J. Wagner 2017

See also Batten 1995, Hoare 1961, Knight 1930, Kues 1984, Kues 1990, Kues and Batten 2001 and Yochelson and Saunders 1967

Sister taxa: Pseudozygopleura (Stephanozyga) lisaspira, Pseudozygopleura (Stephanozyga) nishimurai, Stephanozyga crassa, Stephanozyga granda, Stephanozyga ignorata, Stephanozyga lisaspira, Stephanozyga magna, Stephanozyga nodosa, Stephanozyga ornamentaria, Nodozyga rugifera, Nodozyga cylindracea, Nodozyga rowlandsi, Nodozyga longnorensis

Type specimen: YPM 12990, a shell. Its type locality is Locality 42. Steep embankment along Pershing Ave. at Cleveland Walk., which is in a Moscovian carbonate limestone in the Fort Scott Formation of Missouri.

Ecology: epifaunal


• Desmoinesian of United States (2: Missouri, New Mexico collections)

• Carboniferous of United States (3: Missouri, New mexico, Texas)

Total: 5 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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