Which of the following is the best explanation for why the fossils were found in all of these locations?

A table shows that fossils of the same extinct animal or plant were found in several locations that are now distant from one another: Mesosaurus, a small freshwater reptile with many sharp teeth, found in South America and Africa; Lystrosaurus, a pig-like land reptile that was about the size of a large dog, found in India, Antarctica, and Africa; Cynognathus, a large predatory reptile about 9 ft long with a do like head, found in Africa and South America; Glossopteris, a prehistoric fern (plant), found in Australia, Antarctica, South America, Africa, and India

A
The plants and animals of the Permian Period must have been able to travel long distances across the oceans in order to expand their habitats.

B
The continental plates that included South America, Africa, India, Antarctica, and Australia must have been connected 300 million years ago.

C
The ocean floors between the continents of South America and Africa must have sunk over the last 300 million years.

D
The fossils of these animals and plants must have been carried across the oceans by violent storms.

1 answer

The best explanation for why the fossils of the same extinct animals and plants were found in several distant locations is:

B: The continental plates that included South America, Africa, India, Antarctica, and Australia must have been connected 300 million years ago.

This explanation aligns with the theory of plate tectonics, which suggests that these continents were once part of a supercontinent (such as Pangaea) before drifting apart. The presence of similar fossils in different continents supports the idea that these landmasses were once connected, allowing species to inhabit those areas before they separated.