Genus Styx
- Species total:
- 12
- Age range:
- 141 - 43.93 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Styx | Cretaceous | Cretaceous |
|
| Styx kondinskayae | Late Cretaceous | Late Cretaceous |
|
| Styx major | Late Cretaceous | Paleocene |
|
| Styx canadensis | Late Cretaceous | Late Cretaceous |
|
| Styx minor | Late Cretaceous | Paleocene |
|
| Styx bella | Late Cretaceous | Early Tertiary |
|
| Styx sp | Coniacian | Santonian |
|
| Styx longirimosa | Nd | Nd |
|
| Styx cara | Nd | Nd |
|
| Styx diversispinulatus | Nd | Nd |
|
| Styx striatella | Nd | Nd |
|
| Styx rara | Nd | Nd |
|