Gastropoda - Bellerophontida - Tropidodiscidae
Alternative combinations: Pelagiella paucivoluta, Raphistoma paucivoluta
Full reference: S.H. Calvin. 1892. Notes on a collection of fossils from the Lower Magnesian Limestone of northeastern Iowa. American Geologist 10:144-148
Belongs to Strepsodiscus according to P. J. Wagner 2023
See also Calvin 1892, Dake and Bridge 1932 and Yochelson and Nuelle 1985
Sister taxa: Strepsodiscus austrinus, Strepsodiscus franconiensis, Strepsodiscus hoyti, Strepsodiscus major, Strepsodiscus minutissimus, Strepsodiscus pagoda, Strepsodiscus praecursor, Strepsodiscus shinetonensis, Strepsodiscus splettstoesseri, Strepsodiscus strongi
Distribution:
• Ordovician of United States (2: Texas collections)
• Cambrian of United States (2: Missouri)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.