This dinosaur lived long ago on Earth in a tropical climate. The dinosaurs were killed and became extinct because of a change in climate. That new climate was called an ice age. What type of fossil would we find that would support the theory that Earth experienced an ice age?

Geological, chemical, paleontological.

Explanation:

Geological evidence for ice ages comes in various forms, including rock scouring and scratching, glacial moraines, drumlins, valley cutting, and the deposition of till or tillites and glacial erratics.

Successive glaciations tend to distort and erase the geological evidence, making it difficult to interpret.

It took some time for the current theory to be worked out.

There have been at least four major ice ages in the Earth's past.

Paleontological by their bones, remains