Gastropoda - Soleniscoidea - Palaeostylidae
Alternative combinations: Microptychia crenimarginis, Streptacis crenimarginis
Full reference: J. B. Knight. 1931. The gastropods of the St. Louis, Missouri, Pennsylvanian outlier: Aclisina and Streptacis. Journal of Paleontology 5(1):1-15
Belongs to Platyconcha according to P. J. Wagner 2023
See also Bandel 2002, Hoare 1961 and Knight 1931
Sister taxa: Platyconcha dunlopiana, Platyconcha hindi
Type specimen: YPM 13012, a shell. Its type locality is SL-1. Headwaters of Feefee Creek, north of Olive St. & west of Lindberg Blvd., 1.5 km northwest of Stratmann (Olivette), which is in a Moscovian offshore shale in the Appanoose Formation of Missouri.
Distribution:
• Carboniferous of United States (2: Missouri 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.