Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Hemphillian  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Neogene | |
| ....Hemphillian | |
| RT | lower Pliocene |
| upper Miocene | |
| SN | Upper Miocene to lower Pliocene. Above Clarendonian, below Blancan. Indexed with ages as applicable. |