Table of Contents
When did Stegosaurus exist?
about 150 million years ago
This Stegosaurus lived about 150 million years ago during a time in Earth’s history called the Jurassic Period. It would have lived in present-day Wyoming, USA.
When did Stegosaurus go extinct?
The Age of Dinosaurs Stegosaurus, for example, lived during the Late Jurassic Period, about 150 million years ago. Tyrannosaurus rex lived during the Late Cretaceous Period, about 72 million years ago. Stegosaurus was extinct for 66 million years before Tyrannosaurus walked on Earth.
How long did the Stegosaurus live?
For example, the Stegosaurus roamed the Earth during the late Jurassic period, between 156 and 144 million years ago. On the other hand, the Tyrannosaurus rex lived during the late Cretaceous period, about 67–65 million years ago. The T. rex actually existed closer in history to humans than to the Stegosaurus.
When did the first true dinosaur appear?
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.
Who found Sophie the Stegosaurus?
Bob Simon
Sophie was a young adult when she died 150m years ago. Her fossilised bones were discovered in 2003 at Red Canyon Ranch in Wyoming, US, by paleontologist Bob Simon.
When did the Stegosaurus live in North America?
Stegosaurus lived in the late Jurassic Period. Stegosaurus was a large, plant-eating dinosaur that lived during the late Jurassic Period, about 150.8 million to 155.7 million years ago, primarily in western North America.
What was the name of the second species of Stegosaurus?
Marsh named a second species, Stegosaurus ungulatus, in 1879, and finally gave a more detailed description of all the Stegosaurus fossils collected so far the following year. In 1881, he named a third species Stegosaurus “affinis”, based only on a hip bone.
Where are the Stegosaurus fossils in Jurassic Park?
Stegosaurus also appears in Jurassic Park: Operation Genesis for PS2, PC, and Xbox, as a four-star attraction. Its fossils are found in the Morrison Formation A (along with Dryosaurus and Ceratosaurus, just like in the real world. It is based on its appearance in Jurassic Park III.
How big was the brain of a Stegosaurus?
The Stegosaurus’ brain is hypothesized to have weighed a mere 2.8oz making it one of the smallest among dinosaurs. This estimation was made fairly accurately after the discovery of a relatively well preserved Stegosaurus brain case enabled Othniel Charles Marsh to take a cast of the approximate size of the brain.