After Damiani, 2004

Microposaurus Haughton, 1925
        †Rhytidosteus Owen, 1884; Romer, 1947
        †Rhytidosteus Owen; Huene, 1956
        †Rhytidosteus Owen; Kitching, 1957
        †Rhytidosteus Owen; Shishkin, 1964
        †Microposaurus Haughton; Cosgriff, 1965
        †Microposaurus Haughton; Hammer, 1987 (invalid)
        †Lyrocephaliscus; Hellrung, 1987
        †Tertrema; Schoch & Milner, 2000
        †Microposaurus Haughton; Steyer, 2002 (invalid)
        †Microposaurus Haughton; Damiani, 2004
        
    †Microposaurus casei Haughton, 1925
        †Microposaurus casei Haughton, 1925
        †Rhytidosteus capensis (Owen, 1884); Romer, 1947
        †Rhytidosteus capensis (Owen); Huene, 1956
        †Rhytidosteus capensis (Owen); Kitching, 1957
        †Rhytidosteus capensis (Owen); Shishkin, 1964
        †Microposaurus casei Haughton; Cosgriff, 1965
        †Microposaurus casei Haughton; Hammer, 1987 (invalid)
        †Lyrocephaliscus euri (Wiman, 1914); Hellrung, 1987
        †Tertrema acuta (Wiman, 1914); Schoch & Milner, 2000
        †Microposaurus casei Haughton; Steyer, 2002 (invalid)
        †Microposaurus casei Haughton; Damiani, 2004

Reference(s):