Hecker M. Revision of Orionastraea SMITH, 1917 (Rugosa) from the Lower Carboniferous (uppermost Viséan) of the Moscow Basin, and comnients on patterns of variability, evolution and range of the genus in Eastern Europe and in the British Isles. Coloq. paleontol. [Internet]. 1 de enero de 2002 [citado 6 de diciembre de 2025];53:3-20.