Ask for help: What is the difference between explaining from phenomenon to essence and from cause to result? Better give an example. Thank you.

Let me give you an example. Dinosaurs Everywhere proves the theory of "plate tectonics" by the fact that dinosaur fossils were found in Antarctica, which is the order from phenomenon to essence. Crushed Sand infers that the reason of dinosaur extinction is "impact theory" or "volcano theory", and the "impact theory" was established in time, but in any case, their interpretation order is logical.