Paleontologists have described a new species of prehistoric amphibian, Gobiophryne armatus, based on a near-complete fossil found in the Jurassic beds of Mongolia. The creature is a 160-million-year-old armored burrowing frog, notable for the thick bony plates covering its skull and back. This anatomical adaptation suggests the frog lived in a highly seasonal environment and used its armor for protection against predators while estivating underground.
The fossil was found in a death-pose typical of burrowing animals caught in a sudden sediment collapse. This discovery provides critical insights into the early evolution of frogs, showing that specialized lifestyles like burrowing and defensive armoring emerged much earlier than previously thought. The specimen also retains impressions of skin texture, indicating a tough, leathery exterior.