Geological Time: Quaternary Holocene recent
holotype
The identification is based upon:
, : Brönnimann, P.; Whittaker, J. E. (1988). The Trochamminacea of the Discovery Reports. A Review of the Trochamminacea (Protozoa: Foraminiferida) described from South Atlantic and Antarctic Waters by Heron-Allen and Earland (1932) and Earland(1933, 1934, 1936). British Museum (Natural History). 152 p. Plate , Fig.