Dreams was created from the field jacket this extinct Slylemys tortoise found in Sioux County, NE in the White River Formation. The White River Formation is a sandstone and mudstone formation containing many vertebrate species formed approximately 35 million years ago when western Nebraska was continuing to cool from the very warm early Eocene epoch into, as represented here, the more ecologically diverse Oligocene epoch. Picture at this time some deciduous trees and an expansion of grasslands. This Stylemys tortoise ate plants and insects.
Special thanks to: J-P Cavigelli, Tate Geological Museum, Casper College; Wikipedia; U. of CO Museum of Natural History; U of CA Museum of Paleontology; E. Evenoff, UNC Dept of Earth Sciences, GSA abstract