Fossil record/evidence is the best evidence that continents that are now separated were once joined.
A picture of evolutionary change over the last 3.5 billion years can be seen by combining snapshots of the past from the fossil record. Even if there are spots where the picture is smeared and parts are missing, it is obvious from fossil evidence that life is extremely old and has evolved throughout the course of time.
The fossil record is one sort of proof that the Theory of Continental Drift is true. In rocks of comparable age, scientists have discovered fossils of similar species of plants and animals. On the coasts of many continents, these rocks could be found. This implies that the continents were once connected.
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