Loeblich, A. R.; Tappan, H. (1950). North American Jurassic Foraminifera: I. The Type Redwater Shale (Oxfordian) of South Dakota. <em>Journal of Paleontology.</em> 24(1): 39-60.[details] Available for editors [request]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Spirillina amphelicta Loeblich & Tappan, 1950 †. Accessed at: https://www.marinespecies.org/Foraminifera/aphia.php?p=taxdetails&id=895192 on 2025-05-15
original descriptionLoeblich, A. R.; Tappan, H. (1950). North American Jurassic Foraminifera: I. The Type Redwater Shale (Oxfordian) of South Dakota. <em>Journal of Paleontology.</em> 24(1): 39-60.[details] Available for editors [request]
basis of recordEllis, B. F.; Messina, A. R. (1940-2015). Catalogue of Foraminifera. <em>Micropaleontology Press, American Museum of Natural History, New York.</em> [details]
Present Inaccurate Introduced: alien Containing type locality