237-Million-Year-Old Fossils Reveal an Amphibian That Shouldn’t Have Existed

Two fossils from China point to the first known fully marine amphibian, revealing an ancient exception to the freshwater dependence of its living relatives. An armored amphibian nearly three feet long appears to have lived on the seafloor hundreds of miles from a large landmass. How did it survive in salt water when no known [...]

from SciTechDaily https://ift.tt/e1sPmlJ