Cooper, G. A. (1959). Genera of Tertiary and recent rhynchonelloid brachiopods. <em>Smithsonian Miscellaneous Collections.</em> 139(5):1–90, pl. 1–22.[details] Available for editors
original descriptionCooper, G. A. (1959). Genera of Tertiary and recent rhynchonelloid brachiopods. <em>Smithsonian Miscellaneous Collections.</em> 139(5):1–90, pl. 1–22.[details] Available for editors