Strophomenata - Productida - Productellidae

Alternative combinations: Marginifera helica, Productus (Marginifera) helicus, Productus helicus

Synonyms: Productus indeterminatus Abich 1878, Productus spinulosus Abich 1878

Belongs to Spinomarginifera according to V. Verna and L. Angiolini 2011

Sister taxa: Spinomarginifera alpha, Spinomarginifera chengyaoyenensis, Spinomarginifera ciliata, Spinomarginifera ciliata, Spinomarginifera concentrica, Spinomarginifera costata, Spinomarginifera giganta, Spinomarginifera grandis, Spinomarginifera intercedens, Spinomarginifera iranica, Spinomarginifera janus, Spinomarginifera jiaozishanensis, Spinomarginifera jisuensis, Spinomarginifera kathwaiensis, Spinomarginifera kueichowensis, Spinomarginifera labaensis, 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

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 14.3 x 17.6, valve 10.1 x 12.4