The pelecypod, Unio substrictus J. Sowerby, from the Carboniferous near Chapeltown, north Sheffield, England, is identified by modern criteria as Carbonicola subconstricta (J. Sowerby).

GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States