Traits name details
original description
Douglass, R. C. (1960). The foraminiferal genus Orbitolina in North America. <em>Geological Survey Professional Paper.</em> 333: 1-52., available online at https://doi.org/10.3133/pp333 [details] Available for editors 
basis of record
Ellis, B. F.; Messina, A. R. (1940-2015). Catalogue of Foraminifera. <em>Micropaleontology Press, American Museum of Natural History, New York.</em> [details]
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