Pachydictya ambigua- Pachydictya bifurcata
- Pachydictya bromidensis
- Pachydictya conciliatrix
- Pachydictya cyclostomoides
- Pachydictya elegans
- Pachydictya emaciata
- Pachydictya everetti
- Pachydictya fimbriata
- Pachydictya firma
- Pachydictya foliata
- Pachydictya gigantea
- Pachydictya hexagonalis
- Pachydictya obesa
- Pachydictya occidentalis
- Pachydictya pumila
- Pachydictya robusta
- Pachydictya senilis
- Pachydictya sheldonensis
- Pachydictya splendens
- Pachydictya triserialis
- Pachydictya turgida