Bivalvia - Cardiidia - Grammysiidae
Alternative combination: Sphenotus washingtonense
Full reference: G. H. Girty. 1910. New genera and species of Carboniferous fossils from the Fayetteville shale of Arkansas. Annals of the New York Academy of Sciences 20(3):189-238
Belongs to Sphenotus according to R. D. Hoare 1993
See also Girty 1910 and Pojeta 1969
Sister taxa: Sphenotus aeolus, Sphenotus altidorsatus, Sphenotus branneri, Sphenotus cataractes, Sphenotus cherokeense, Sphenotus dubius, Sphenotus gibsonense, Sphenotus hicksii, Sphenotus meslerianus, Sphenotus monroensis, Sphenotus oklahomense, Sphenotus pisinnus, Sphenotus quadriplicatum, Sphenotus solenoides, Sphenotus tentoriolus, Sphenotus tiogensis, Sphenotus valvulus
Type specimen: USNM 155899, a shell
Distribution:
• Carboniferous of United States (2: Arkansas, West Virginia collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.