Strophomenata - Productida - Productellidae

Full reference: S. Z. Shen, X. L. He, and M. L. Zhu. 1992. Changxingian brachiopods from Zhongliang Hill of Chongqing, Sichuan Province. Stratigraphy and Palaeontology of Oil and Gas Bearing Areas in China 3:171-196

Belongs to Haydenella according to S. Z. Shen et al. 1992

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

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 23.4 x 27.0