Plethospira Ulrich and Scofield 1897 (snail)

Gastropoda - Murchisoniina - Hormotomidae

Alternative spelling: Seelya (Plethospira)

Synonym: Seelya Ulrich and Scofield 1897

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

Parent taxon: Hormotomidae according to P. Bouchet et al. 2005

See also Knight et al. 1960, Schuchert 1900, Sepkoski 2002, Ulrich and Scofield 1897, Wagner 1999 and Wagner 2017

Sister taxa: Catazone, Coelocaulus, Diplozone, Gyrodoma, Hormotoma, Hormotomina, Medfracaulus, Ptychocaulus

Subtaxa: Plethospira arenaria Plethospira caledoniensis Plethospira cannonensis Plethospira cassina Plethospira difficilis Plethospira emanuelensis Plethospira extensa Plethospira floweri Plethospira rotunda Seelya cassandra Seelya ventricosa

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Type: Plethospira rotunda

Ecology: epifaunal carnivore


• Ordovician of the United Kingdom (2 collections), United States (8: Missouri, Montana, New York, Texas, Utah)

• Cassinian of Canada (1: Newfoundland and Labrador), United States (9: Minnesota, Missouri, Vermont)

• Arenig of Australia (1)

• Jefferson of United States (1: Texas)

• Jeffersonian of United States (1: Texas)

Total: 23 collections including 24 occurrences

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Specimen images are retrieved through the ePANDDA API.

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