Dinosaurs & Fossils
Dinosaurs
Dinosaurs
Dinosaurs lived only during the Mesozoic Era, which is often called the “Age of Dinosaurs.” Utah has perhaps the best Mesozoic rock record in the world. The Mesozoic Era (252 to 66 million years ago) is divided into three time periods: the Triassic (252-201 million years ago); the Jurassic (201-145 million years ago); and the Cretaceous (145-66 million years ago).
Utah’s Dinosaur Record
Poster (pdf)
Age of Dinosaurs
Dinosaurs of the Mesozoic Era
Utahraptor Megablock Fossil Project
Learn about the 9-ton megablock of Utahraptor dinosaur fossils being prepared at the UGS.
Cretaceous Period
- Utah’s Early Cretaceous Fossils Provide Critical Data on the Opening of the Atlantic Ocean
from Survey Notes, September 2018 - Does Utah Preserve North America’s Oldest Cretaceous Dinosaurs Because of Ancient Salt Deposits?
from Survey Notes, January 2017 - UGS Paleontologists Collect Dinosaur Megablock
from Survey Notes, September 2015 - The Thumb-Spiked Iguanodontians – Dinosaurian Cows of the Early Cretaceous
from Survey Notes, January 2013 - UGS Scientist Honored in Naming of Utah’s Newest Dinosaur: Martharaptor greenriverensis
from Survey Notes, January 2013 - Utah’s Prehistoric Tanks: The Ankylosaurs
from Survey Notes, September 2011 - New Horned Dinosaurs from the Wahweap Formation
from Survey Notes, September 2007 - Falcarius utahensis; Killer Dinos Turned Vegetarian
Utah dinosaur bones reveal missing link in evolution of diet - Dinosaur Record from the Early Cretaceous Cedar Mountain Formation
from Survey Notes, January 2005
Jurassic Period
- Scientific Investigations at Hanksville-Burpee Dinosaur Quarry
from Survey Notes, January 2009
Tracks and Tracksites
Fossils
Ice Age Wildlife
Collecting
Publications
