Atagma Lonsdale in Dixon, 1850 † (original description)
Aulodus Agassiz in Dixon, 1850 † (original description)
Axogaster Lonsdale in Dixon, 1850 † (original description)
Berycopsis Agassiz in Dixon, 1850 † (original description)
Coniasaurus Owen in Dixon, 1850 † (original description)
Desmeopora Lonsdale in Dixon, 1850 † (original description)
Diblasus Lonsdale in Dixon, 1850 † (original description)
Dolichosaurus Owen in Dixon, 1850 † (original description)
Epiphaxum Lonsdale, 1850 † (original description)
Holostoma Lonsdale in Dixon, 1850 † (original description)
Homoeosolen Lonsdale in Dixon, 1850 † (original description)
Monocarya Lonsdale in Dixon, 1850 † (original description)
Pachyrhizodus Agassiz in Dixon, 1850 † (original description)
Palaeastacus Bell in Dixon, 1850 † (original description)
Petalopora Lonsdale in Dixon, 1850 † (original description)
Pomognathus Agassiz in Dixon, 1850 † (original description)
Prionolepis Egerton in Dixon, 1850 † (original description)
Siphoniotyphlus Lonsdale in Dixon, 1850 † (original description)
Stenostoma Agassiz in Dixon, 1850 † (original description)
Tomognathus Agassiz in Dixon, 1850 † (original description)