Table of Contents
What is the order of the dinosaur periods?
Dinosaurs lived during three periods of geological time – the Triassic period (which was 252-201 million years ago), the Jurassic period (about 201-145 million years ago) and the Cretaceous period (145-66 million years ago). These three periods together make up the Mesozoic Era.
What happened in the late Jurassic Period?
During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow.
Which came first the Jurassic or Cretaceous period?
The Cretaceous began 145.0 million years ago and ended 66 million years ago; it followed the Jurassic Period and was succeeded by the Paleogene Period (the first of the two periods into which the Tertiary Period was divided). The Cretaceous is the longest period of the Phanerozoic Eon.
Did T-Rex live in Jurassic period?
tyrannosaur, any of a group of predatory dinosaurs that lived from the late Jurassic Period (about 150 million years ago) to the latest Cretaceous Period (about 65 million years ago), at which time they reached their greatest dominance. The best-known and largest member of the group is Tyrannosaurus rex, or T. rex.
How far apart were stegosaurus and T-Rex?
The Jurassic-period dinosaur Stegosaurus already had been extinct for approximately 80-90 million years before the appearance of the Cretaceous dinosaur Tyrannosaurus, making the Tyrannosaurus much closer in time to us (we’re separated by about 65.5 million years).
What is the difference between the Late Jurassic and the Upper Jurassic?
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 161.2 ± 4.0 to 145.5 ± 4.0 million years ago (Ma), which is preserved in Upper Jurassic strata. In European lithostratigraphy, the name “Malm” indicates rocks of Late Jurassic age.