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  • Dinosaur - Wikipedia
    Birds are avian dinosaurs, and phylogenetic taxonomy includes over 11,000 extant species in the group Dinosauria Dinosaurs are a diverse group of reptiles [note 1] of the clade Dinosauria
  • Dinosaur | Definition, Types, History, Names, Facts | Britannica
    Dinosaur, the common name given to a group of reptiles, often very large, that first appeared roughly 245 million years ago and thrived worldwide for nearly 180 million years
  • Dinosaur Facts - American Museum of Natural History
    Delve into these fast facts about dinosaurs for kids of all ages Discover why the Tyrannosaurus had sharp teeth, where the name “dinosaur” comes from, and more! Dinosaurs are a group of reptiles that have lived on Earth for about 245 million years
  • Dinosaurs – The Complete Guide, With Facts And Pictures
    Complete guide to dinosaurs, with list of dinosaurs from each period Dinosaur evolution, extinction, types, plus interesting facts
  • What is a dinosaur? - Science News Explores
    The word “dinosaur” isn’t a catch-all term for just any scaly, prehistoric giant “There’s kind of a misconception that any big extinct thing was a dinosaur,” Smith says
  • Dinosaurs - National Geographic Society
    Scientists estimate over a thousand dinosaur species once roamed Earth Learn which ones were the largest and the smallest, what dinosaurs ate and how they behaved, as well as surprising facts about their extinction
  • What is a Dinosaur? - Natural History Museum
    Dinosaurs were a specialized group of land reptiles that lived during the Mesozoic Era, also called the "Age of Dinosaurs" The Mesozoic was the period of time between 252 million and 66 million years ago
  • Dinosaurs: List of Types Names with Facts Pictures
    Get to know the different types of these reptiles that dominated the Earth before mammals here Classification based on alphabets: Since there is no way to confirm and classify all the dinosaur families, there is no official taxonomy for them


















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