AFFINETRINA Luczkowska, 1972

 

 

Type species: Triloculina planciana d'Orbigny, 1839 (*2304), p. 173; OD.

Affinetrina Luczkowska, 1972 (*1939), p. 368.

Test ovate in outline, flattened to ovate in section, chambers one-half coil in length, triloculine in chamber arrangement, three chambers visible from the exterior, chambers without a floor; wall calcareous, imperforate, porcelaneous; aperture a high arch or slit, enclosing a long slender tooth that is terminally inflated or bifid. Miocene to Holocene; cosmopolitan.