Strophomenata - Productida - Productellidae

Alternative combination: Marginifera whitei

Full reference: R. E. King. 1931. The Geology of the Glass Mountains, Texas, Part II, Faunal summary and correlation of the Permian formations with description of Brachiopoda. The University of Texas Bulletin 3042:1-245

Belongs to Oncosarina according to G. A. Cooper and R. E. Grant 1975

Sister taxa: Oncosarina rotunda, Oncosarina spinicostata

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 12.7 x 16.0