When Did the Dinosaurs Live?

The Mesozoic Era, which began 245 million years ago and lasted for 180 million years, is sometimes called the “Age of Reptiles.” It is divided into three periods.

PeriodMillions of years agoEvents
Triassic245-208Mammals rule
  Rise of small, lightly built dinosaurs
  Flying reptiles, frogs, turtles, crocodiles appear
Jurassic208-146Dinosaurs rule
  Giant herbivores, like Diplodocus, emerge
  First appearance of birds
Cretaceous146-65Great variety of dinosaurs
  Large carnivores, like T. rex, emerge
  At end of Cretaceous dinosaurs go extinct

Provided by fact
monster

If you need to teach it, we have it covered.

Start your free trial to gain instant access to thousands of expertly curated worksheets, activities, and lessons created by educational publishers and teachers.

Start Your Free Trial

Follow us on:

Follow TeacherVision on Facebook
Follow TeacherVision on Google Plus

Highlights

December Calendar of Events
December is full of events that you can incorporate into your standard curriculum! Our Educators' Calendar outlines activities for each event. Happy holidays!

Bullying Prevention Resources
Bullying can cause both physical and emotional harm. Put a stop to classroom bullying, with our bullying prevention resources. Learn how to recognize several forms of bullying and teasing, and discover effective techniques for dealing with and preventing bullying in school.

Conflict Resolution
Teach your students to how resolve conflict amongst themselves without resorting to name-calling, fights, and tattling.

Immigration Resources
Studying immigration brings to light the many interesting and diverse cultures in the world.