Strophomenata - Productida - Productellidae

Full reference: T. A. Grunt. 1973. Taxonomic names, in Permian Brachiopoda of the Pamir. Trudy Paleontologicheskogo Instituta 136:1-211

Belongs to Haydenella according to B.K. Licharew and G.V. Kotlyar 1978

Sister taxa: Haydenella bihemisphaera, Haydenella buravasi, Haydenella carina, Haydenella chilianshaniana, Haydenella deminuta, Haydenella elongata, Haydenella eminens, Haydenella gefoensis, Haydenella granti, Haydenella heilongjiangensis, Haydenella khasorensis, Haydenella kiangsiensis, Haydenella libera, Haydenella miaolingensis, Haydenella minuta, Haydenella nanusa, Haydenella paradoxica, Haydenella plicata, Haydenella qinglongensis, Haydenella salinaria, Haydenella subextensa, Haydenella tersa, Haydenella wangqingensis, Haydenella wenganensis, Haydenella wilczeki, Haydenella zhejiangensis, Productus (Haydenella) quaesitus

Type specimen: PIN 2228/505. Its type locality is Kutali 2, Upper Takhtabulak Fm, which is in a Changhsingian marine horizon in the Takhtabulak Formation of Tajikistan.

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): valve 8.79 x 12.65