Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Arikareean  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Tertiary | |
| ....Arikareean | |
| RT | lower Miocene |
| upper Oligocene | |
| Kirkwood Formation | |
| SN | Provincial series, North America. Indexed with ages as applicable. |