Igo, H.; Ueno, K.; Sashida, K. (1993). Lower Permian fusulinaceans from Ban Phia, Changwat Loei, northeastern Thailand. <em>Transactions and Proceedings of the Palaeontological Society of Japan, new series.</em> 169: 15-43., available online athttp://www.palaeo-soc-japan.jp/download/TPPSJ/TPPSJ_NS169.pdf[details] Available for editors [request]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Staffella ovalis Igo, Ueno & Sashida, 1993 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=1063397 on 2024-09-09
original descriptionIgo, H.; Ueno, K.; Sashida, K. (1993). Lower Permian fusulinaceans from Ban Phia, Changwat Loei, northeastern Thailand. <em>Transactions and Proceedings of the Palaeontological Society of Japan, new series.</em> 169: 15-43., available online athttp://www.palaeo-soc-japan.jp/download/TPPSJ/TPPSJ_NS169.pdf[details] Available for editors [request]