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If you find a rock that has a belemnite fossil in it. how old is the rock? Explain your reasoning

Sagot :

Answer:

See below.

Explanation:

  • Belemnites is a genus of an extinct group of cephalopods
  • These cephalopods existed in the Early Jurassic period from the Hettangian age (196.5–199.6 million years ago) to the Toarcian age (175.6–183.0 million years ago).
  • Therefore, the discovered rock could be anywhere from 175.6 - 196.5 million years old