How did the Mesosaurus fossils on the South American Plate and African Plate get so far apart? Earth’s plates travel at a rate too slow to be experienced by humans. It takes a long time for Earth’s plates to travel great distances. The Mesosaurus fossils moved apart gradually over tens of millions of years.
How did the Mesosaurus fossils on the South American Plate and African Plate get so far apart claim 1 the South American Plate and African Plate moved apart suddenly claim 2 the South American Plate and African Plate moved apart gradually?
Students figure out: The Mesosaurus fossils are found in hard, solid rock on two different plates of Earth’s surface: the South American and African plates. … Students figure out: The South American and African plates moved apart as a divergent boundary formed between them and an ocean basin formed and spread.
Why are Mesosaurus fossils found in South America and Africa continents that are now thousands of kilometers and an ocean apart?
As you determined in the previous lesson, there is a divergent plate boundary between the South American Plate and African Plate. … This divergent plate motion explains why the fossil remains of Mesosaurus that were once together are now found on continents thousands of kilometers apart.
How did the Mesosaurus move?
It probably propelled itself through the water with its long hind legs and flexible tail. Its body was also flexible and could easily move sideways, but it had heavily thickened ribs, which would have prevented it from twisting its body. Mesosaurus had a small skull with long jaws.
How did the plates get so far apart?
When molten material rises from the asthenosphere, cold ocean water cools the rock until it becomes solid. As the plates move apart, new cracks open in the solid rock. More molten material rises and hardens. … Here the North and South American plates are moving away from the Eurasian and African plates.
What happens with the plates and the mantle when two plates move toward each other?
When the plates move they collide or spread apart allowing the very hot molten material called lava to escape from the mantle. When collisions occur they produce mountains, deep underwater valleys called trenches, and volcanoes. … The Earth is producing “new” crust where two plates are diverging or spreading apart.
What is evidence that Africa was once cold?
Proof that shows Africa was once cold includes evidence of glacier scars and deposits.
How did the South American and African plate move?
At convergent plate boundaries, one plate moves underneath the other plate and sinks into the mantle. The South American and African Plates moved apart as a divergent boundary formed between them and an ocean basin formed and spread.
Can Mesosaurus swim long distance?
Mesosaurus were among the first reptiles to live in and around water, and they spent most of their lives in the water. However, their bodies weren’t built for swimming long distances, so they stayed close to land.
Who found the Mesosaurus?
They were used by Alfred Wegener, an early 20th century German geologist and meteorologist who came up with the concept of continental drift, as evidence for the existence of Pangaea, which was all of the Earth’s land mass combined into a supercontinent.
Can the Mesosaurus swim?
Remains of Mesosaurus, a freshwater crocodile-like reptile that lived during the early Permian (between 286 and 258 million years ago), are found solely in Southern Africa and Eastern South America. It would have been physiologically impossible for Mesosaurus to swim between the continents.
Why were the fossil remains of Mesosaurus?
Why were the fossil remains of Mesosaurus important to Alfred Wegener? They proved that Earth is composed of several rocky tectonic plates. They proved that Mesosaurus is extinct. They were the first fossils discovered in Africa and South America.