It's like a scene out of a Flintstones comic. Fred is running a backhoe and drops its shovel right on top of a dinosaur's tail.
It happened in Canada this week when the backhoe laid bare an extremely rare find, the fossil of a dinosaur millions of years old.
A whole 35-foot dinosaur may be slumbering inside the rock a construction worker hit while clearing a site in the town of Spirit River. He was making way for an oil pipeline.
The company stopped work and called around to find someone who knew something about dinosaurs.
Word got to paleontologist Matthew Vavrek, who went out to inspect. He wasn't expecting to see what he found on the side of a sandstone boulder.
"As we walked around it, we saw this whole part of a tail of a dinosaur. To see something like that is pretty incredible," he said.
Paleontologists usually find fossils jumbled up, broken apart, crushed and spread out over a large area, not in one piece like this one.
"The last time I've seen something like that was in a museum. I've never found something like this before," he said. He has rarely ever even heard of a find like this anywhere in the world.