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” The shells were deposited in layers on the Ocean floor over millions of years, layers that would be violently broken up and rippled into a mountain range 480,000,000 years ago by a catastrophic earthquake.South America fits into Africa, rocks get younger the closer you get to where the crust is spreading under the ocean, and satellites have observed the drift.Jump To: Age of the Earth and Its Fossils Genetics Comparative Anatomy Transitional Fossils Convergent Evolution Adaptations Vestigial Traits Artificial Selection Evolution in Action Sexual Selection And The List Goes On…These reasons will work from the general to the specific.When a species gets split into two groups by a river, mountain range, island, lake, or ocean via earthquakes, floods, droughts, climate change, or continental drift, the two populations will begin to drift genetically.

The reason we can see the layers is because they were formed in different ways.Cynognathus, a Triassic land reptile, fossils are found in South America and Africa.The Triassic era was between 250,000,000 and 200,000,000 years ago.By measuring the ratio of carbon-14 in a younger fossil, scientists can estimate its age.These fossilized bacterial colonies date back 2.7 billion years and may extend 3.4 billion years.

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