dinosaurs By coryl Jan 1, 3000 the first dinosaur Jan 1, 3000 cratstios period Period: Jan 1, 3000 to Dec 31, 6500 bc Jan 1, 3500 erly triassic Jan 1, 4000 triassic Jan 1, 4500 late triassic Dec 5, 4590 monsters of the sea Oct 5, 4710 dinosaurs get big Jan 1, 5000 early jerassic Oct 1, 5750 jerassic Dec 31, 6500 the last dinosaurs
