Nomenclature
original description
Saidova, K. M. (1981). О современном состоянии системы надвидовых таксонов кайнозойских бентосных фораминифер - [On an up-to-date system of supraspecific taxonomy of Cenozoic benthonic foraminifera]. Akademiya Nauk SSSR. 1-73., available online at https://books.google.pt/books?id=h-jxnSjjmhQC [details] Available for editors
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From editor or global species database
Diagnosis Test trochospiral, may be reduced to three or fewer chambers per whorl in the adult, chamber interior subdivided by internal buttresses or partitions. U. Cretaceous (Campanian) to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]