Brachiopoda

Zygatrypa paupera (Billings, 1866)

Synonymy list
1866     Zygospira paupera — Billings, pp. 46
1928     Zygospira paupera Billings — Twenhofel, pp. 214, fig. 21:21-22
1977     Zygatrypa paupera (Billings, 1866) — Copper, pp. 307, fig. 37:21-29