Triceratops, life-like model Pachycephalosaurus Quetzalcoatlus (pronounced KET-sal-koh-AHT-lus) was a

Quetzalcoatlus (pronounced KET-sal-koh-AHT-lus) was a giant pterosaur from the late Cretaceous period

USA Formation: Cedar Mountain Age: Early Cretaceous

which was one of the more abundant species from the area where they were first found

The skull was about 1

during the Pliocene

Triceratops, life-like model Pachycephalosaurus Quetzalcoatlus (pronounced KET-sal-koh-AHT-lus) was aIndividual Triceratops are estimated to have reached about 7. 9 to 9. 0 meters (26. 029. 5 feet) in length, 2. 9 to 3. 0 meters (9. 59. 8 feet) in height, and 6. 112 tons (13,00026,000 pounds) in weight.] The most distinctive feature is their large skull, among the largest of all land animals. The largest known skull (specimen MWC 7584, formerly BYU 12183) is estimated to have been 2. 5 meters (8. 2 feet) in length when complete, and could reach