+A dinosaur is a diverse group of [reptiles](/wiki/reptile) that lived on Earth for over 160 million years, an era now known as the [Mesozoic](/wiki/mesozoic). From tiny creatures to towering giants, their existence is pieced together through [fossils](/wiki/fossil), revealing a world long past.
+## See also
+- [Paleontology](/wiki/paleontology)
+- [Prehistory](/wiki/prehistory)
+- [Extinction](/wiki/extinction)
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