| Unavailable original name & rank | : | |
Campbell, D.H. 1890: 102 ("Sub-Kingdom", "Pteridophytes"). [nom. vernac.]. ≡ |
| Original name & rank | : | |
Britton & Brown, 1896. Ill. Fl. N. U.S. 1: 1 ("Subkingdom Pteridóphyta"). ≡ |
| Subsequent spelling | : | |
Doweld, A.B. 2001. Prosyll. Tracheophyt., Tent. Syst. Pl. Vasc.: LXXIV ("Britton et Brown, 1896").
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