| Name | From | To | Age range |
|---|---|---|---|
| Gleichenia vulgata | Callovian | Oxfordian |
|
| Gleichenia venusta | Aptian | Albian |
|
| Gleichenia umbonatus | Liassic | Wealden |
|
| Gleichenia umbonata | Middle Triassic | Tertiary |
|
| Gleichenia tuberculatum | Early Paleocene | Early Paleocene |
|
| Gleichenia trisectiformis | Middle Jurassic | Early Tertiary |
|
| Gleichenia triplexiformis | Neocomian | Cenomanian |
|
| Gleichenia triplex | Mesozoic | Late Neogene |
|
| Gleichenia trifidus | Aptian | Aptian |
|
| Gleichenia triangulatisporites | Early Cretaceous | Tertiary |
|
| Gleichenia triangula | Cretaceous | Santonian |
|
| Gleichenia subminor | Late Jurassic | Oligocene |
|
| Gleichenia stellata | Middle Triassic | Late Neogene |
|
| Gleichenia sphenopteroides | Mesozoic | Albian |
|
| Gleichenia sp.BR-8 | Cretaceous | Cretaceous |
|
| Gleichenia sp.9 | Middle Eocene | Middle Eocene |
|
| Gleichenia sp.8 | Turonian | Turonian |
|