Although his research group has not yet uncovered a full skeleton, they believe the ancient amphibian belonged to a group of primitive creatures known as temnospondyls. The animal was about a foot ...

we realized it was some sort of amphibian,” he added. With the aid of researchers at the Field Museum in Chicago, they created high-resolution CT scans that revealed a partial skeleton.

i. Pectoral and pelvic girdles became larger and stronger. Rhipidistians had fleshy fins with axial skeleton. In amphibians, the skeleton has been modified, with the radial bones positioned near base ...