How are scientists able to date dinosaur’s footprints accurately?

Question

This post is about the recent footprints found in the dried up river bed in texas. I’m aware about carbon dating, but I thought you have to have organic material. And to add on top of that, wouldn’t the layer of earth that dates back be eroded/built upon by sediments in the river?

In: 25

Answer 1

Layers of sedimentary rock are laid down in order, one on top of the other. The oldest on the bottom. The layer the Dino walked on can be estimated based on that. It’s a little like counting the rings in a tree.