magda2104
magda2104 magda2104
  • 26-05-2017
  • Biology
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Which geological time boundary marked extinction of dinosaurs

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tionnawhs
tionnawhs tionnawhs
  • 26-05-2017
I pretty sure the answer is the K-T boundary
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HandyMan133
HandyMan133 HandyMan133
  • 26-05-2017
The Jurassic period is the answer
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