1. It was formed about 11 thousand years ago after the Pleistocene ice ages . 2. It was reduced to its current range before and during the Pleistocene ice ages . 3. Bigtooth maples and other unique plants are survivors left over from the Pleistocene Ice Age . 4. In Northern Europe it was the youngest of the glacials of the Pleistocene ice age . 5. It includes parts of Pleistocene ice ages . 6. Subsequent excavations by the Indiana State Museum have determined the bones to originate from Pleistocene Ice Age animals. 7. The entire region was covered by ice sheets during the Pleistocene ice ages , save perhaps for a few nunataks. 8. In common with the rest of Scotland, Yell was covered in thick ice sheets during the Pleistocene ice ages . 9. This desert butte was once an island in a lake that filled Death Valley several times during the Pleistocene ice ages . 10. A large portion of the plateau is a coalfield that was formed approximately 320 million years ago during the Pleistocene ice age .
