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The greatest, most diverse and successful class of land vertibrates ever, believed to have originated sometime in the Triassic about 240 million years ago, and disappearing around 65 million years ago. Gods among animals, and awesome testaments to the power of creation (or evolution, if your must insist that these words be mutually exclusive) they were physiologically superior to mammals and gave rise to birds.

Often our society shows a disinterest with the phenomena of the dinosauria, approaching paleontology with a "they're dead, who cares" attitude. They are also ridiculed for having "died out" when they in fact persisted a period of something like 160 million years--more than 40 times longer than the time elapsed since the earliest human anscestors appeared. Even the word "dinosaur" has a deprecative connotation, implying something that is outdated or obsolete.

Stop for a moment to consider that these animals did, in fact exist, and are not the chimeras of children. This writer would maintain, however, that anyone holding the view that an interest in dinosaurs is nerdy and childish deserves to have his or head bitten off by a Charcharodontosaurus.
Lots of kids my age got hooked on dinosaurs for a while--it was a childhood disease, like mumps or chicken pox, and if left alone, most kids recovered and then had a lifetime immunity to dinosaurmania. But I was that rare exception, a terminal, chronic case.-- Robert T. Bakker, "The Dinosaur Heresies"
by Killing Kittens May 18, 2004
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Really big bloody reptile thing that used to live a long long time ago and they ate eachother and said "rawr!". Sometimes there were boring dinosaurs that were small and/or ate plants because they sucked. However some of them could fly and stuff, which was awesome. They also said "rawr".
Dinosaur 1: "I am going to eat you all up! Rawr!"
Dinosaur 2: "Oh no!"
by Mr Fantastic June 05, 2005
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An old man who preys on young girls; the male equivalent of a 'cougar'.
D-I-N-O-S-A-U-R a dinosaur
D-I-N-O-S-A-U-R a dinosaur
An O-L-D M-A-N you're just an old man
Hittin' on me, what?
You need a cat scan
by KissNTell January 15, 2010
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Dinosaur, or for short, Dino, was originally the great animals that roamed our earth from the Triassic period to the Cretaceous millions of years ago.

Now, the mighty creatures have been reduced to nothing but a idiotic scene fad.
"Rawr! I'm a dinosaur! They're so like omg cute!"

**note
I do not know how scene kids... well... communicate would be the appropriate word. I'd have to lower my IQ by several points to probably get it right.
by Zimlyette May 07, 2009
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