3 min read The start of the Triassic period (and the Mesozoic era) was a desolate time in ... a time of tremendous change and rejuvenation. Life that survived the so-called Great Dying repopulated ...

Non-bird dinosaurs lived between about 245 and 66 million years ago, in a time known as the Mesozoic Era. This was many millions of years ... giving them the opportunity to evolve into a wide variety ...

To define something as an "era" is not new. We have had many eras throughout history: the Mesozoic Era ... are marking a certain period of their life based on distinctive characteristics like ...