original description
Vella, P. (1957). Studies in New Zealand Foraminifera; Part I- Foraminifera from Cook Strait. Part II- Upper Miocene to Recent Species of the Genus Notorotalia. <em>New Zealand Geological Survey Paleontological Bulletin.</em> 28: 1-64. [details]
basis of record
Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors [request]
From editor or global species database
Diagnosis Chambers one-half coil in length, added in changing planes that in section trace a sigmoid path in the early stage, later becoming planispiral; wall porcelaneous with agglutinated coating. Miocene to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]