The Abundant Remains of Ammonites in Oklahoma Indicate That Oklahoma

Question

The abundant remains of ammonites in Oklahoma indicate that Oklahoma was
A) once covered by a shallow ocean.
B) part of a vast tropical forest.
C) once a part of a mountain range that has now eroded.
D) once a vast desert with almost no rainfall.
E) always a semi-arid grassland.

Accepted Answer

The abundant remains of ammonites in Oklahoma suggest that it was once covered by a shallow ocean. Ammonites were marine organisms and their presence indicates that the area was once submerged in water.