Q. Consider the following geological periods:

1. Triassic
2. Jurassic
3. Cretaceous
4. Permian

Which of the following is the correct chronological order of the above from oldest to most recent?
Answer: Permian, Triassic, Jurassic, Cretaceous
Notes: The correct chronological order is: Permian (oldest, end of the Palaeozoic Era), followed by Triassic, Jurassic, and Cretaceous (all in the Mesozoic Era). Dinosaurs and mammals first appeared in the Triassic; the Jurassic saw abundant dinosaurs and the first birds; the Cretaceous ended with a mass extinction. “Age of Reptiles” refers to the Mesozoic, not Permian.