Early Pennsylvanian
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The Early Pennsylvanian (also known as the Lower Pennsylvanian) is the first of three subepochs of the Pennsylvanian epoch of the Carboniferous period. It spans the time between 318.1 ± 1.3 Ma and 311.7 ± 1.1 Ma (million years ago). It has one faunal stage, the Bashkirian.
[edit] References
| Carboniferous period | |||||
|---|---|---|---|---|---|
| Mississippian | Pennsylvanian | ||||
| Lower/Early | Middle | Upper/Late | Lower/Early | Middle | Upper/Late |
| Tournaisian | Viséan | Serpukhovian | Bashkirian | Moscovian | Kasimovian | Gzhelian |
