Gastropoda - Murchisoniina - Straparollinidae
Alternative combination: Lophospira basicarinata
Full reference: J. S. Cullison. 1938. Dutchtown fauna of southeastern Missouri. Journal of Paleontology 12(3):219-228
Belongs to Straparollina according to P. J. Wagner 2011
Sister taxa: Straparollina anceps, Straparollina asperostriata, Straparollina cassina, Straparollina circe, Straparollina eurydice, Straparollina gregaria, Straparollina harpa, Straparollina holtedahli, Straparollina hudsoni, Straparollina incarinatus, Straparollina infida, Straparollina martinensis, Straparollina minima, Straparollina pelagica, Straparollina procris, Straparollina smoeleni, Straparollina turgida
Type specimen: Missouri School of Mines & Metallurgy PC 7104, a shell. Its type locality is MSM 101.1. Diversion Channel 0.8 km west of Ancell (Scott City), which is in a Cassinian carbonate limestone in the Dutchtown Formation of Missouri.
Ecology: facultatively mobile epifaunal suspension feeder
Average measurements (in mm): shell length 20.0