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Top 10 Dinosaur Events of the Pre-Dinosphere Years

Has this happened to you? You think you know a lot about dinosaurs, and then you're surprised to learn that your favorite didn't even exist! Paleontologists are making new discoveries all the time, keeping us dinosaur fans on our toes. Curious if there's big news that you missed? To celebrate Dinosphere's 10th birthday, we've compiled the top 10 dinosaur events prior to Dinosphere's grand opening.

Don't miss the second post in this series, the Top 10 Dinosaur Events of the Post-Dinosphere Years. 

By Dinosphere Coordinator Mookie Harris and Natural Science Curator Dallas Evans.

  1. 1822 — Gideon Mantell discovers the first dinosaur fossil.
    Mantell discovered fossil teeth of an animal that would later be named Iguanodon. He didn't know it at the time, but he had just found the first dinosaur. Nineteen years later, Sir Richard Owen creates the word “dinosaur” to define the group of extinct animals that includes Iguanodon, Hylaeosaurus and Megalosaurus.  That list of three species will grow to over 700 discovered species by the year 2014.

  2. 1858 — The first dinosaur skeleton is found in the United States.
    Hadrosaurus was excavated and described by Joseph Leidy in Haddonfield, New Jersey, just 15 minutes east of Philadelphia. It's called Hadrosaurs foulki. It was discovered and excavated by William Parker Foulke. Dr. Joseph Leidy, a professor of anatomy at Philadelphia's Academy of Natural Sciences described and displayed the specimen.
     
  3. 1902 — Barnum Brown finds the first T.rex.
    The first partial skeleton of a Tyrannosaurus rex was found in Eastern Wyoming by Barnum Brown. It wasn't for another 60 to 70 years, though, before T. rex becomes the most well-known dinosaur. At this time, when someone says “dinosaur,” most people think of Brontosaurus.
     
  4. 1903For the second time, Brontosaurus ceases to exist. 
    Brontosaurus"—such a cool name. It doesn’t get more dramatic and descriptive than “thunder lizard. Elmer Riggs, a fantastic vertebrate paleontologist from The Field Museum, discovered that Apatosaurus is simply a young form of the adult Brontosaurus. But Apatosaurus was named first, so that name had priority. This will confuse people for years to come.  
     
  5. 1933 — Roy Chapman Andrews discovers the first dinosaur eggs. 
    American adventurer Roy Chapman Andrews (the real-life inspiration for Indiana Jones) leads the expedition that discovers the first known dinosaur eggs while exploring in Mongolia. Prior to this, it was not known whether dinosaurs laid eggs or gave birth to live young.
     
  6. 1960 — The Flintstones debuts.
    The Flintstones debuts on ABC television, featuring cave people, ice age mammals and dinosaurs all living together. This will confuse people for decades to come.
     
  7. 1980 — The asteroid extinction theory is proposed.
    The Alvarez Hypothesis is proposed, stating that an asteroid struck the Earth 66 million years ago, leading to the demise of the dinosaurs. The same year, Atari releases the arcade video game Asteroids, leading to the rise of video gaming and the eventual demise of human productivity.
     
  8. 1986 — Warm-blooded dinosaur theory is widely accepted.
    Robert T. Bakker’s The Dinosaur Heresies is published, exposing the general public to John Ostrom’s theories on dinosaurs being warm-blooded. This revolutionizes the way they are viewed in pop culture.
     
  9. 1990 — Michael Crichton publishes Jurassic Park.
    Michael Crichton publishes the book Jurassic Park, reminding adults around the world that dinosaurs are still cool, even if you’re not five years old. Steven Spielberg turns it into an awesome movie in 1993 and the mainstream public goes nuts for Velociraptor, so much so that in 1995 the NBA’s Toronto Raptors become the first pro sports team named for a dinosaur. (Although the team’s owner is considering a name change. But that’s appropriate for a fossil isn’t it? Just ask the Brontosaurus.)
     
  10. 2000 — Leonardo the mummified dinosaur is discovered.
    Leonardo the mummified dinosaur is discovered near Malta, Montana. This fully articulated and mummified skeleton of a young Brachylophosaurus includes fossilized skin, tendons, musculature and stomach contents.