Sedgwickia McCoy 1844 (clam)

Bivalvia - Cardiidia - Grammysiidae

Alternative spelling: Allorisma (Sedgwickia)

Parent taxon: Grammysiidae according to H. E. Vokes 1980

See also Meek 1871 and Sepkoski 2002

Sister taxa: Asketomorpha, Cardiomorpha, Cercomyopsis, Cimitaria, Cuneamya, Cuneamyinae, Ectogrammysia, Fuchsella, Glyptoconcha, Grammysia, Grammysiinae, Grammysioidea, Prothyris, Solenomorpha, Zaidiomysia, Protomya

Subtaxa: Sedgwickia guangdongensis Sedgwickia lianxianensis Sedgwickia topekaensis

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Ecology: facultatively mobile deep infaunal suspension feeder

Distribution:

• Permian of China (5 collections), Malaysia (1), United States (1: Texas)

• Virgilian of United States (1: New Mexico)

• Chesterian of United States (5: Ohio, West Virginia)

• Carboniferous of the United Kingdom (3), United States (3: Arkansas, Oklahoma, Virginia)

• Devonian of China (1), Poland (3)

• Silurian of the United Kingdom (5)

• Ordovician of United States (1: Ohio)

Total: 29 collections including 30 occurrences

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Specimen images are retrieved through the ePANDDA API.


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