Paracyrtolites subplanus Ulrich and Scofield 1897 (mollusk)

Tergomya - Cyrtonellida - Cyrtolitidae

Alternative combinations: Cyrtolites (Paracyrtolites) subplanus, Cyrtolites subplanus

Full reference: E. O. Ulrich and W. H. Scofield. 1897. The Lower Silurian Gastropoda of Minnesota. The Paleontology of Minnesota 39(2):813-1081

Belongs to Paracyrtolites according to P. J. Wagner 2023

See also Bassler 1932, Reed 1921, Ulrich and Scofield 1897 and Wahlman 1992

Sister taxa: Paracyrtolites carinatus, Paracyrtolites parvus

Type specimen: USNM 45792, a shell

Ecology: slow-moving low-level epifaunal grazer

Distribution:

• Ordovician of Canada (1: Québec collection), United States (3: Kentucky, Tennessee)

Total: 4 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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