- Late Tri****ic (Norian) †
Cephalosyne Ponomarenko, 1969 –
Madygen Formation, Kyrgyzstan, Late Tri****ic (Carnian) †
Cephalosyne capitata Ponomarenko, 1969...
- †Ademosynidae (7 species):
Ademosyne (A. bacca, A. elliptica, A. kirghizica),
Cephalosyne (C. capitata),
Dolichosyne (D. confragosa, D. rostrata, D. sulcata) †Triaplidae...