If you found a fossil like the one pictured above in an open grassy field, what could you infer about this particular part of Earth during much earlier times?

Responses
A Earth's earlier environment in this particular area was covered with water.Earth's earlier environment in this particular area was covered with water.
B Earth's earlier environment in this particular area was most likely a deep canyon.Earth's earlier environment in this particular area was most likely a deep canyon.
C Earth's earlier environment in this particular area was frozen like the ground coverings of a tundra.Earth's earlier environment in this particular area was frozen like the ground coverings of a tundra.
D Earth's earlier environment in this particular area was also similar to the open, grassy field you see today.Earth's earlier environment in this particular area was also similar to the open, grassy field you see today.

A Earth's earlier environment in this particular area was covered with water.