Snail on Grandfather Mountain. Can you imagine climbing mountains carrying your house on your back?
Pictures of Dimetrodon Footprints positive and negative impressions from Prehistoric Trackways National Monument. Dimetrodon is an extinct genus of non-mammalian synapsids that lived during the Cisuralian, around 295–272 million years ago. It is a member of the family Sphenacodontidae. - Cisuralian / Early Permian Era