De orde Metzgeriales Chalaud kent 14 families.
| Allisoniaceae (Schust. ex Grolle) Schljakov | Makinoaceae Nakai | Pelliaceae H. Klinggr. |
| Aneuraceae H. Klinggr. | Metzgeriaceae H. Klinggr. | Petalophyllaceae Stotler & Crand.-Stotl. |
| Calyculariaceae He-Nygrén, Juslén, Ahonen, Glenny & Piippo | Mizutaniaceae Furuki & Z. Iwats. | Phyllothalliaceae E.A. Hodgs. |
| Fossombroniaceae Hazsl. | Moerckiaceae Stotler & Crand.-Stotl. | Sandeothallaceae R.M. Schust. |
| Hymenophytaceae R.M. Schust. | Pallaviciniaceae Mig. |
