The turtle, considered the oldest of the living reptiles, first evolved around 200 million years ago. Today, species of aquatic turtles can be found worldwide with the exception of Antarctica. The term “pond turtle” or terrapin, generally applies to those species that dwell in freshwater rivers, lakes, marshes and ponds. The pond turtle, like all species of turtle, have a modified skeletal structure that includes a boney carapace, or shell, for protection.nnSpecifications:nnThe photo shown is an example of what your specimen will approximately look like. Each shell is unique and will vary in size, shape, color, etc.nnExtra Small Shell Average Length: Below 4 inchesnSmall Shell Average Length: 4-6 3/4 inchesnLarge ShellnAverage Length: 7 inches and abovennOrigin: North America