Question

In a series of rock layers a geologist finds fossilized shellfish and bony fish in layers that are 1.0 m and 1.5 m deep. However, in a layer that is 2.0 m deep, he finds fossils of a lizard-like dinosaur and a fern-like tree.
Which explains his findings?

A) The continent shifted to a polar region
B) The ancient sea dried up and became land
C) An astroid hit the area, causing the dinosaurs to become extinct
D) The ancient land area was invaded by the sea

Thankyou for your time!

Answer 1

I think the correct answer from the choices listed above is option D. His findings would explain that the ancient land area was invaded by the sea.  Its because that the lizard-like dinosaur and the fern like tree were buried underneath the fish fossil and the shellfish fossil.