Strophomenata - Productida - Productellidae

Alternative combination: Productus (Marginifera) sexcostatus

Full reference: B. Licharew. 1937. Brachiopoda of the Permian system of USSR, Fasc. I. Permian Brachiopoda of north Caucasus, families Chonetidae Hall et Clarke and Productidae Gray. Paleontology of USSR Monographs 39:1-151

Belongs to Marginifera according to T. A. Grunt and V.Yu Dmitriev 1973

Sister taxa: Marginifera (Arenaria), Marginifera (Marginifera), Marginifera (Nesiotia), Marginifera aliensis, Marginifera altimontana, Marginifera andreai, Marginifera bicostala, Marginifera brevisulcata, Marginifera carniolica, Marginifera costalliformis, Marginifera costellata, Marginifera elongata, Marginifera ganota, Marginifera gobiensis, Marginifera haydenensis, Marginifera hubeiensis, Marginifera involuta, Marginifera jalaidensis, Marginifera juresanensis, Marginifera lebedevi, Marginifera longispina, Marginifera madagascariensis, Marginifera magniplicata, Marginifera morrisi, Marginifera multicostellata, Marginifera nathorstfjordensis, Marginifera nesiotes, Marginifera parahimalayensis, Marginifera planocosta, Marginifera popovkaensis, Marginifera profundosulcata, Marginifera qaganqulutica, Marginifera qamarensis, Marginifera rimuensis, Marginifera schartimiensiformis, Marginifera schellwieni, Marginifera semigratiosa, Marginifera septentrionalis, Marginifera spinulifera, Marginifera tetraspina, Marginifera timanica, Marginifera unsulcata, Marginifera uralica, Marginifera yanhuensis, Marginifera zhongbaensis, Productus (Marginifera) acutocurvatus, Productus (Marginifera) gerassimovi, Productus (Marginifera) nikchitchi, Productus (Marginifera) simkini, Productus (Marginifera) spatiosus, Productus (Marginifera) subornatus

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): valve 8.02 x 9.67