Megalonyx jeffersoni, ground sloth model, Now The West Virginia State Fossil Styracosaurus 5B Hipparion hindfoot

5B Hipparion hindfoot

Megalonyx jeffersonii

The forelimb preserves parts of the wing skeleton on the main slab

sauropod dinosaur

Apatosaurus was up to 70 feet long and weighed up to 33 tons

Megalonyx jeffersoni, ground sloth model, Now The West Virginia State Fossil Styracosaurus 5B Hipparion hindfootPresident, Thomas Jefferson, scientifically described fossil bones given to him by saltpeter miners found in a Monroe County cave in 1797. Jefferson thought they were the claws of a giant cat. In 1799 Casper Wistar re described the bones as a new species of extinct giant ground sloth and named it in honor of President Jefferson. Only recently have the bones been Carbon 14 dated at over 38,000 year old. On March 8, 2008 Megalonyx jeffersoni became the