Strophomenata - Productida - Productellidae

Alternative combination: Productus (Marginifera) labaensis

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 Spinomarginifera according to B.K. Licharew and G.V. Kotlyar 1978

Sister taxa: Spinomarginifera alpha, Spinomarginifera chengyaoyenensis, Spinomarginifera ciliata, Spinomarginifera ciliata, Spinomarginifera concentrica, Spinomarginifera costata, Spinomarginifera giganta, Spinomarginifera grandis, Spinomarginifera helica, Spinomarginifera intercedens, Spinomarginifera iranica, Spinomarginifera janus, Spinomarginifera jiaozishanensis, Spinomarginifera jisuensis, Spinomarginifera kathwaiensis, Spinomarginifera kueichowensis, Spinomarginifera lopingensiformis, Spinomarginifera lopingensis, Spinomarginifera plana, Spinomarginifera plena, Spinomarginifera pseudosintanensis, Spinomarginifera pygmaea, Spinomarginifera qaidamensis, Spinomarginifera qiaotingensis, Spinomarginifera semicircridge, Spinomarginifera shizhongensis, Spinomarginifera sichuanensis, Spinomarginifera spatiosa, Spinomarginifera spinosocostata, Spinomarginifera sulcata, Spinomarginifera tuberculatiformis, Spinomarginifera yuduensis

Type specimen: Its type locality is Nikitina Balka, blocks in fifth left tributary from mouth, north Caucasus, which is in a Changhsingian marine horizon in the Russian Federation

Average measurements (in mm): valve 28.0 x 33.0