Gastropoda - Euomphalina - Elasmonematidae

Full reference: J. B. Knight. 1933. The gastropods of the St. Louis, Missouri, Pennsylvanian outlier: V. The Trocho-Turbinidae. Journal of Paleontology 7(1):30-58

Belongs to Strophostylus (Anematina) according to J. B. Knight 1933

Sister taxa: Anematina conica, Anematina micula, Anematina parva, Anematina permiana, Anematina proutana, Anematina rockymontanum, Anematina subconica

Type specimen: YPM 13855, 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 marine shale in the Appanoose Formation of Missouri.

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 1.25 x 0.78