The wood turtle (Glyptemys insculpta) is a turtle endemic to North America. It is in the genus Glyptemys, a designation given to only one other turtle: the bog turtle. The wood turtle reaches a carapace length of 14 to 20 centimeters (5.5 to 7.9 in), its defining characteristic being the pyramidal pattern on its upper shell. Morphologically, it is similar to the bog turtle, spotted turtle, and Blanding's Turtle.