additional sourceLoeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online athttps://books.google.pt/books?id=n_BqCQAAQBAJ[details] Available for editors [request]
From editor or global species database
Diagnosis Test trochospiral, at least in the early stage. L. Cretaceous (Barremian) to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]