Sabirov, A. A.; Gushchin, S. B. (2006). New early Ordovician calcareous foraminifers of the middle Tien Shan. <em>Paleontological Journal.</em> 40(1): 11-19., available online athttps://doi.org/10.1134/s0031030106010023[details] Available for editors [request]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Bisphaera primitiva Sabirov & Gushchin, 2006 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=1043773 on 2025-05-04
original descriptionSabirov, A. A.; Gushchin, S. B. (2006). New early Ordovician calcareous foraminifers of the middle Tien Shan. <em>Paleontological Journal.</em> 40(1): 11-19., available online athttps://doi.org/10.1134/s0031030106010023[details] Available for editors [request]