Family SPIROLOCULINIDAE Wiesner, 1920

Spiroloculinidae Loeblich and Tappan, 1982 (*1917), p. 30 (nom. transl.).

Spiroloculininae Wiesner, 1920 (*3373), p. 17, 18 (sub-family).

Cribrolinoidinae Haynes, 1981(*1437), p. 158 (subfamily). Palaeomiliolinidae Haynes, 1981 (*1437), p. 167.

Proloculus followed by reduced cornuspirine flexostyle of approximately a whorl or slightly less in length, at least in the microspheric generation, followed by two chambers per whorl; simple wall may be smooth, striate, or costate; aperture terminal, rounded to elon­gate, open or with simple to bifid tooth. M. Jurassic (Bajocian) to Holocene.