| Pylaisiadelpha deplanatula (Cardot) W.R. Buck, 1984 |
| Pylaisiadelpha duellii H.A. Crum, 1985 |
| Pylaisiadelpha rhaphidostegioides (Cardot) Cardot, 1912 |
| Pylaisiadelpha sharpii H.A. Crum, 1986 |
| Pylaisiadelpha tenuirostris (Bruch & Schimp.) W.R. Buck, 1984 |
| Pylaisiadelphaceae Goffinet & W.R. Buck, 2004 |
| Taxithelium Spruce ex Mitt., 1869 |
| Taxithelium planum (Brid.) Mitt., 1869 |
| Taxithelium portoricense R.S. Williams, 1927 |
| Wijkia H.A. Crum, 1971 |
| Wijkia costaricensis (Dixon & E.B. Bartram) H.A. Crum, 1971 |
| Wijkia flagellifera (Broth.) H.A. Crum, 1971 |