Apparently it’s New York State’s official state reptile and, at 8-20″ shell length, average of 8-35 lbs, is one of the largest turtles in North America. They eat both plants, animals and carrion and often bury themselves in the mud with no nostrils and eyes showing, waiting for unsuspecting prey. They will snap at anything they find threatening and their bite is so powerful that it can easily shear fingers. So don’t get too close to one. On average they live 30-40 years.
Looks like something for the age of dinosaurs.