Two skull fossils unearthed in Germany provide the first direct evidence that lepidosaurs – reptiles closely related to lizards, snakes and tuatara – were alive 240 million years ago during the Middle Triassic period. The fossils predate all other lepidosaur records by 12 million years. This skull fossil was found in a mudstone layer at the top of the Untere Graue Mergel of the Lower Keuper, Vellberg, Germany. Scale bar – 1 mm. Image...
