| Aneuraceae | |
Aneuraceae
| H. Klinggr. | Höh. Crypt. Preuss. 11 | 1858 |
| Unknown | |
Blasiites
| R.M. Schust. | Hepat. Anthocerotae N. Amer. 1: 353 | 1966 |
| Unknown | * |
Marsilea
| P. Micheli ex Adans. | Fam. Pl. 2: 15 | 1763 |
| Metzgeriaceae | |
Metzgeriaceae
| H. Klinggr. | Höh. Crypt. Preuss. 10 | 1858 |
| | |
Metzgeriineae
| R.M. Schust. ex Schljakov | Bot. Zhurn. (Moscow & Leningrad) 57(4): 501 | 1972 |
| Unknown | |
Metzgeriites
| Steere | Amer. Midl. Naturalist 36: 306 | 1946 [1947] |
| Unknown | |
Pallaviciniites
| R.M. Schust. | Hepat. Anthocerotae N. Amer. 1: 352 | 1966 |
| Unknown | |
Rhyzophyllum
| P. Beauv. | Fl. Oware 1: 22 | 1805 |
| Treubiitaceae | ** |
Treubiitaceae
| R.M. Schust. | Bryoph. Syst. 77 | 1980 |
| Unknown | * |
Treubiites
| R.M. Schust. | Hepat. Anthocerotae N. Amer. 1: 353 | 1966 |