Genus Tetrasaccus
- Species total:
- 14
- Age range:
- 345 - 103.33 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tetrasaccus | Early Gondwana | Lacian |
|
| Tetrasaccus elongatus | Early Triassic | Early Cretaceous |
|
| Tetrasaccus imparilis | Early Triassic | Early Cretaceous |
|
| Tetrasaccus irregularis | Early Triassic | Early Cretaceous |
|
| Tetrasaccus karharbarensis | Early Gondwana | Early Gondwana |
|
| Tetrasaccus neimengolensis | Early Triassic | Early Cretaceous |
|
| Tetrasaccus petaloides | Mesozoic | Early Cretaceous |
|
| Tetrasaccus platyformis | Early Triassic | Early Cretaceous |
|
| Tetrasaccus quadratus | Early Triassic | Early Albian |
|
| Tetrasaccus sp | Permian | Early Cretaceous |
|
| Tetrasaccus sp. Miao et al,1984 | Early Jurassic | Early Cretaceous |
|
| Tetrasaccus sp. Trip.et al,1989 | Late Carnian | Early Norian |
|
| Tetrasaccus type 1 | Jurassic | Jurassic |
|
| Tetrasaccus type 1 Vish.,1955 | Late Jurassic | Late Jurassic |
|