Tuataras May Have Originated as Early as 190 Million Years Ago

Paleontologists have recognized a brand new species of tuatara-like sphenodontian reptile from dozens of fossilized specimens present in Arizona, the United States. Sphenodontians are one of many longest dwelling lineages of reptiles, with a fossil report of not less than 230 million years and with latest morphological and molecular clock estimates suggesting their cut up from their closest […]