> #biology , #paleontology , #earth-sciences > When did the first modern birds appear on Earth on the geological time scale?
Anonymous
Apr 12
#biology #paleontology #earth-sciences

When did the first modern birds appear on Earth on the geological time scale?

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ChatGPT
Apr 12
The first modern birds, known as Neornithes, appeared during the Cretaceous period, around 66 million years ago.
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