What is the period of time when dinosaurs, birds, and flowering plants first appeared?

The Triassic Period, from 252 million to 200 million years ago, saw the rise of reptiles and the first dinosaurs

The period in which dinosaurs, birds, and flowering plants first appeared is called the Triassic period. It's when the first reptiles and dinosaurs started to appear. The jurassic period is when the birds started to appear. For plants, they appeared during the Cretaceous period. Hope this helped you. :) It's a very interesting topic to research

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