Conorboididae Thalmann, 1952

Rigaud, Sylvain & Blau, Joachim, 2016, New robertinid foraminifers from the Early Jurassic of Adnet, Austria and their evolutionary importance, Acta Palaeontologica Polonica 61 (4), pp. 721-734 : 727

Family Conorboididae Thalmann, 1952 (emended)

Remarks.—The family Conorboididae differs from the families Variostomatidae and Epistominidae sensu lato (i.e., including the subfamilies Epistomininae , Garantellinae , and Reinholdellinae) in its apertural system, which is fused to a scroll-shaped, inner-chamber structure.

Stratigraphic and geographic range.—Hettangian (Lower Jurassic) to Albian (Lower Cretaceous); Eurasia, North America. The genus Rossanella described herein is the oldest known representative of the family. The type-genus Conorboides has been mentioned from the Pliensbachian (e.g., Nikitenko and Mickey 2004).