What Is The First Reptile?
What Is The First Reptile? Earliest Reptile: Hylonomus. The earliest known reptile is given the genus name Hylonomus. It was about 20 to 30 centimeters (8 to 12 inches) long, lived in swamps, and ate insects and other small invertebrates. At first, synapsids were more successful than sauropsids. Where was the first reptile found? Early