Trilobita - Proetida - Hystricuridae

Full reference: R. L. Heller. 1954. Stratigraphy and paleontology of the Roubidoux Formation of Missouri. State of Missouri Department of Business and Administration, Division of Geological Survey and Water Resources 1-60

Belongs to Paraplethopeltis according to R. L. Heller 1954

Sister taxa: Paraplethopeltis cordai, Paraplethopeltis genacurvus, Paraplethopeltis genarectus, Paraplethopeltis seelyi

Type specimen: U. Mo. No. 10355, a cephalon/head (cranidium). Its type locality is MR-26. Southeast facing slope, sw of Pine Hollow School, 110 above Birch Tree Rd, which is in a Migneintian carbonate limestone in the Roubidoux Formation of Missouri.

Ecology: fast-moving low-level epifaunal deposit feeder