original description
Eimer, G. H. T.; Fickert, C. (1899). Die Artbildung und Verwandtschaft bei den Foraminiferen. Entwurf einer natürlichen Eintheilung derselben. <em>Zeitschrift für Wissenschaftliche Zoologie.</em> 65: 599-708., available online at https://www.biodiversitylibrary.org/page/43249091 [details]
From editor or global species database
Diagnosis Test streptospirally enrolled, at least in the early stage, later may uncoil; wall agglutinated, noncanaliculate; aperture interiomarginal to areal. M1 Jurassic (Callovian) to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]