
1) Transitional fossil
Found on
https://www.crosswordclues.com/clue/limnoscelis

Limnoscelis is a genus of large (1.5 m in total length), very reptile-like diadectomorph (a type of reptile-like amphibian) from the Early Permian of North America. Contrary to other diadectomorphans, Limnoscelis appear to have been a carnivore. Though the post cranial skeleton is very similar to the early large bodied reptiles like pelycosaurs an...
Found on
http://en.wikipedia.org/wiki/Limnoscelis

extinct genus of tetrapod that appeared very close to the origin of amniotes (mammals, birds, or reptiles). It may have been a stem form from which ...
Found on
http://www.britannica.com/eb/a-z/l/52
No exact match found.