BOB HIRSHON (host):
Between frogs and salamanders. I’m Bob Hirshon and this is Science Update.
On a recent Science Update, we told you that ancient amphibians are rare in the fossil record, making the origin of modern amphibians a mystery. Well, we have an update. Vertebrate paleontologist Jason Anderson of the University of Calgary and his colleagues recently examined a fossil that was originally discovered in Texas back in 1995.
JASON ANDERSON (University of Calgary):
I immediately recognized it as something special and something really exciting. It shows unique features both of frogs and of salamanders so it’s a little of one, a little of the other, so that’s why we’re calling it a "Frogomander" now.
The discovery of the Frogomander, also known by its scientific name Gerobatrachus hotteni, confirms that frogs and salamanders evolved from a single group of ancient amphibians called temnospondyls and diverged from each other less than 300 million years ago. I’m Bob Hirshon, for AAAS, the science society.