Oligorhynchia mica

Nikitin, I. F.; Popov, L. E. (1984). Chast II. Brakhiopody bestamakskoy i sargaldakskoy svit (srednii ordivik) [Brachiopods and biostratigraphy of the middle and upper Ordovician of the Chingiz Range. Part II. Brachiopods from the Bestamak and Sargaldak formations (middle Ordovician).]. pp. 126–166. In: Bandaletov, S. M. (Ed.). <em>Brachiopody i biostratigrafia srednego i verkhnego ordovika khrebta Chingiz.</em> Nauka, Alma-Ata, 196 pp.