Scientists Discover Huge Fossil Revealed to Be the World’s Oldest Tadpole, Leave Them Stunned A fossil uncovered in Argentina ...

That muddy area is known today as the Morrison Formation, and its geological strata are dense with fossils. (A nearby town is called Dinosaur, Colorado.) A swath of it is owned by Jason Cooper, a dino ...

It turned out to be a femur from (a) the largest Stegosaurus ever found and (b) a skeleton that was about three-quarters ...