Fossil evidence has been used to understand the movement of continental plates. A particular species of animal originated in Asi
a during the Cretaceous period. It was able to spread across touching landmasses, but not across oceans. Predict which of the following could be true of its fossils, using the figure below.
They have been not able to spread easily across land because it better adapted the environment and stayed there in water.
<h3>What are Mesosaurus ?</h3>
These creatures were ancient lizards that looked a bit like small crocodiles, with narrow heads and long tails. They had webbed feet and grew to about 1 meter long
The Mesosaurus might have gone extinct by the end of the Early Permian period. As their fossils were discovered on both sides of the Atlantic Ocean, the species must have become extinct due to continentaldrift.
They propelled themselves by mianly moving the large fin on their tail in a side to side motion. Mosasaurs were also covered in smooth scales which were very dark in color.
