The Diplodocus lived at the end of the Jurrasic Period 150 million years ago. The Diplodocus was about 115 feet long and weighed 10-15 tons. You will find a selection of free printable Dinasaur coloring pages including the Diplodocus in the Dinosaur coloring pages channel. There are interesting facts to learn about this prehistoric animal on the Dinosaur channel on Hellokids.com. Choose any of your favorite dinosaur coloring pages to either color online with the interactive coloring machine or print to decorate at home.