Unknown | ** |
Metzgeriothallus metzgerioides
| (J. Walton) R.M. Schust. | New Man. Bryol. 2: 1177 | 1984 |
Unknown | ! |
Metzgeriothallus metzgerioides
| (J. Walton) T. Katag. | Acta Biol. Pl. Agr. 11(1): 143 | 2023 |
Unknown | |
Metzgeriothallus sharonae
| Hernick, Landing & Bartowski | Rev. Palaeobot. Palynol. 148(2–4): 160, 1–2 | 2008 [2007] |