Subfamily LOEBLICHIINAE Cummings, 1955
Loeblichiinae Loeblich and Tappan, 1961 (*1902), p. 286, nom. corr. pro subfamily Loeblichinae. Loeblichinae Cummings, 1955 (*694), p. 3 (nom. imperf.).
Test planispiral, compressed, evolute, chambers numerous, of nearly equal height through-out; aperture basal. L. Carboniferous (Visean) to U. Carboniferous (Moscovian).