LocNo: 372Knobstone Formation
| Country: |
USA
|
| Province: |
Indiana, Clark County
|
| Locality: |
Clark Co., unrecorded
|
| Layer: | Knobstone Formation |
| Lower Boundary: |
low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
|
| Upper Boundary: |
mid.Tournais.--up.Tournaisian [Tn2--Tn3], 353 million years
|
| Georeference: |