Photos: Weird 4-Legged Snake Was Transitional Creature
Laura Geggel
| Like other snake fossils from the Cretaceous, this one is from Gondwana, suggesting that snakes originated on the southern supercontinent. (Image credit: Dave Martill | University of Portsmouth.) (Image credit: Dave Martill | University of Portsmouth.) (Image credit: Dave Martill | University of Portsmouth.) (Image credit: Dave Martill | University of Portsmouth.) |