What are the 4 dinosaur periods?

The ‘Age of Dinosaurs’ (the Mesozoic Era) included three consecutive geologic time periods (the Triassic, Jurassic, and Cretaceous Periods). Different dinosaur species lived during each of these three periods.

What was the largest Triassic dinosaur?

– the largest dinosaur in the Triassic, a long-necked, quadrupedal herbivore (a plateosaurid sauropod), 27 feet (8 m) long. Very common in Germany, France, and Switzerland, 222-219 mya. Plesiosaurus – A marine reptile (a plesiosaur not a dinosaur) 10-13 ft (3-4 m) long.

What was the dominant dinosaur in the Triassic period?

In the early Triassic, it appeared that the therapsids would dominate the new era. One genus, Lystrosaurus, has been called the Permian/Triassic “Noah,” as fossils of this animal predate the mass extinction but are also commonly found in early Triassic strata.

How was the Triassic Period named?

The first period of the Mesozoic Era is the Triassic Period, which lasted from 245 to 202 million years ago. The name Triassic comes from Germany where it was originally named the Trias in 1834 by Friedrich August Von Alberti (1795-1878) because it is represented by a three-part division of rock types in Germany.

What came after Jurassic period?

Jurassic Period, second of three periods of the Mesozoic Era. Extending from 201.3 million to 145 million years ago, it immediately followed the Triassic Period (251.9 million to 201.3 million years ago) and was succeeded by the Cretaceous Period (145 million to 66 million years ago).

What period was the T Rex in?

83.6 million years ago – 66 million years ago (Cretaceous)Tyrannosaurus / Lived
T. rex lived at the very end of the Late Cretaceous, which was about 90 to 66 million years ago.

What came first Triassic or Jurassic?

Triassic Period, in geologic time, the first period of the Mesozoic Era. It began 252 million years ago, at the close of the Permian Period, and ended 201 million years ago, when it was succeeded by the Jurassic Period.

Why is it called the Jurassic period?

The Jurassic constitutes the middle period of the Mesozoic Era and is named after the Jura Mountains, where limestone strata from the period were first identified.

Which is older Silurian or Cambrian?

The major divisions of the Paleozoic Era, from oldest to youngest, are the Cambrian (541 million to 485.4 million years ago), Ordovician (485.4 million to 443.8 million years ago), Silurian (443.8 million to 419.2 million years ago), Devonian (419.2 million to 358.9 million years ago), Carboniferous (358.9 million to …

What period was the stegosaurus in?

155 million years ago – 150 million years ago (Late Jurassic – Albian)Stegosaurus / Lived

What period was the Velociraptor in?

89.8 million years ago – 72.1 million years ago (Cretaceous – Maastrichtian)Velociraptor / Lived