| Power Glen Shale | |
|---|---|
| Stratigraphic range: Silurian | |
| Type | Formation |
| Unit of | Medina Group |
| Underlies | Devils Hole Sandstone |
| Overlies | Whirlpool Sandstone [1] |
| Lithology | |
| Primary | shale |
| Location | |
| Region |  New York |
| Country |  United States |
The Power Glen Shale is a geologic formation in New York. It preserves fossils dating back to the Silurian period. [2]
Macrocephalochelys is an extinct genus of turtles in the family Chelydridae. It was first described from a partial skull from the Pliocene found in Ukraine by Piboplichko and Taraschchuk in 1960. It was assigned to the family Chelydridae by R. L. Carroll in 1988 although it had been hypothesised to belong in Chelydridae by Chkhikvadze in 1971.
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