| 11. | But mostly in the Ordovician Period, this zone was above water and eroding.
|
| 12. | If one looks closely, Ordovician period gastropod fossils can be found in the limestones.
|
| 13. | Corney is underlain by Grandiorite of the Eskdale intrusion, intruded during the Ordovician period.
|
| 14. | In the Ordovician period, an inland sea formed in what is now Eastern Europe.
|
| 15. | This was followed by plants emerging in late Ordovician Period and early Silurian Period.
|
| 16. | The Kittatinny Valley was created during the late Ordovician period and the Cambrian period.
|
| 17. | This also marks the end of the Ordovician period.
|
| 18. | These fast-moving nektonic carnivores lived in the Ordovician period.
|
| 19. | The fossils are of primitive fish and date back 450 million years to the Ordovician Period.
|
| 20. | The valley gives its name to the Hirnantian Age in the Ordovician Period of geological time.
|
