Reptiles generally have dry, tough skin, unlike the smooth skin of amphibians ... Both groups are cold-blooded vertebrate animals, meaning they rely on external heat sources to regulate their ...

Instead, the captured fish were swallowed whole. Dolichorhynchops grew 12 to 15 feet (4 to 5 meters) long and was probably covered in smooth skin. Its winglike paddles were constructed of almost a ...