IRMNG Taxon list
Tetralithus M. Gardet, 1955 †Tetralithus aculeus Stradner, 1961 †Ceratolithoides aculeus (Stradner, 1961) Prins & Sissingh in Sissingh, 1977 †Tetralithus campanensis P. Cepek, 1970 †Tetralithus cassianus Jafar, 1983 †Tetralithus copulatus Deflandre †Tetralithus distortus J.B. Risatti †Tetralithus gothicus Deflandre †Tetralithus mississippiensis J.B. Risatti †Tetralithus multiplus K. Perch-Nielsen, 1973 †Tetralithus nitidus Martini, 1961 †Nannotetrina nitida (Martini, 1961) Aubry, 1983 †Tetralithus obscurus Deflandre †Tetralithus ovalis H. Stradner, 1964 †Tetralithus pseudotrifidus Jafar, 1983 †Tetralithus pyramidus Gardet, 1955 †Tetralithus servator J.B. Risatti †Tetralithus tortus J.B. Risatti †Tetralithus trifidus Stradner in Stradner & Papp, 1961 †Quadrum trifidum (Stradner in Stradner & Papp, 1961) Prins & Perch-Nielsen in Manivit et al., 1977 †
