Answer:
One of the best-preserved records of these events is in the bottom of the Grand Canyon—in a package of sedimentary strata known as the Tonto Group.
Explanation:
A wild plant growing where it is not wanted and in competition with cultivated plants.
that same type of animal that had that fossil migrated to different areas or the world
Hi! I found this on hiking and they compare the two regions mountains. Hope this helps! https://thetrek.co/east-vs-west/
I think the Southern Cone is the answer
