Bivalvia - Cardiidia - Grammysiidae
Full reference: R. D. Hoare, M. J., I.I.I. Heaney, and R. H. Mapes. 1989. Bivalves (Mollusca) from the Imo Formation (Mississippian, Chesterian) of North-Central Arkansas. Journal of Paleontology 63(5):582-603
Belongs to Sphenotus according to R. D. Hoare 1993
See also Hoare et al. 1989
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 quadriplicatum, Sphenotus solenoides, Sphenotus tentoriolus, Sphenotus tiogensis, Sphenotus washingtonensis
Type specimen: USNM 435881, a shell (right valve). Its type locality is Loc. 1. USGS 14369. Road cut on se side US 65, 0.8 km sw of Peyton Creek Bridge, which is in a Serpukhovian offshore grainstone/shale in the Imo Formation of Arkansas.
Ecology: facultatively mobile infaunal suspension feeder
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.