カモノハシ科
カモノハシ属 Ornithorhynchus カモノハシ Ornithorhynchus anatinus Shaw, 1799
†Monotrematum Pascual, 1992 et al. †Monotrematum sudamericanum Pascual, 1992 et al.
†Obdurodon Woodburne and Tedford, 1975 †Obdurodon dicksoni Archer, 1992 et al. †Obdurodon insignis Woodburne and Tedford, 1975 †Obdurodon tharalkooschild Pian, 2013 et al.
†Steropodon Archer, 1985 et al. †Steropodon galmani Archer, 1985 et al.
†Teinolophos Rich, 1999 et al. †Teinolophos trusleri Rich, 1999 et al.