Facts and Fun about Science and Social Studies topics compiled by Drew Dell.

Dinosaur Facts
  The oldest dinosaur fossils are 230 years old.  
  Dinosaurs went extinct 65 million years ago.  
  The largest known dinosaur is the Brachiosaurus at 23 m in length and 12 m in hight.  
  The smallest known dinosaur is the Compsognathus at 3 ft. long and weighed about 6 1/2 pounds.   
  There are approximately 700 named dinosaur species.  
  The Triassic period was 215 million years ago.  
  The Jurassic period was 150 million years ago.  
  The Cretaceous period was 70 million years ago.  
   
   
   
   
 


Dinosaur Fun              ?Dinosaur Trivia
 

  

Facts were collected from the following pages: http://pubs.usgs.gov/gip/dinosaurs