4-Legged Fossil Snake Is a World First
"Hugging" creature from Brazil shakes up picture of snake evolution
By Anastasia Christakou, Nature magazine on July 24, 2015
The first four-legged fossil snake ever found is forcing scientists to rethink how snakes evolved from lizards.
Although it has four legs, Tetrapodophis amplectus has other features that clearly mark it as a snake, says Nick Longrich, a palaeontologist at the University of Bath, UK, and one of the authors of a paper describing the animal in Science.
https://www.scientificamerican.com/article/4-legged-fossil-snake-is-a-world-first/