Nomenclature
basis of record
Patterson, D. (2001). Platypus checklist of Protoctista [details]
Other
Present
Inaccurate
Introduced: alien
Containing type locality
From editor or global species database
Diagnosis Test forming a high trochospiral coil or may be modified to triserial, later stage may be reduced to biserial or uniserial; wall calcareous, perforate, hyaline, optically radial; aperture a high, loop-shaped interiomarginal opening, internal toothplate connected to the apertural margin and may extend within to attach to the margin of the previous chamber foramen. U. Cretaceous (Turonian) to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]