Bivalvia - Modiomorphida - Modiomorphidae

Full reference: J. S. Cullison. 1938. Dutchtown fauna of southeastern Missouri. Journal of Paleontology 12(3):219-228

Belongs to Modiolopsis according to J. S. Cullison 1938

Sister taxa: Modiolopsis alvae, Modiolopsis dalecarlica, Modiolopsis kallholniensis, Modiolopsis leptaenarum, Modiolopsis modiolaris, Modiolopsis orthoconcavus, Modiolopsis pygmaea, Orthonotella faberi, Sphenolium cuneiforme, Corallidomus concentricus, Lithobia atava, Modiodesma leptaenarum, Modiodesma dalecarlica, Modiodesma kullsbergensis

Type specimen: Missouris School of Mines and Metallurgy No. 7109, a shell. Its type locality is Geiser Quarry, 2.1 km east of Dutchtown. Unit 2, which is in a Cassinian carbonate limestone in the Dutchtown Formation of Missouri.

Ecology: stationary semi-infaunal suspension feeder

Average measurements (in mm): shell 10.0 x 8.0