Dallasaurus turneri: Mosasaur Missing Link
This is very, very cool. Sixteen years ago an amature fossil finder Van Turner found a fossilized Mosasaur. Why is this particular Mosasaur, Dallasaurus turneri, so cool? Well, it turns out that this Mosasaur still has its legs. It is a clear transitional fossil from a land based reptile to the water based reptile most are familiar with. Dallasaurus was also abot 3 feet long, compared to the Mosasaurs at the end of the Cretaceous that were around 40 feet long.
Via Evolving Thoughts.