The discovery of a partial horned dinosaur in late August 2017 at a construction site for a new public facility in Thornton, Colorado (now named the Fossil Ridge Public Safety Center) led to the excavation of the most complete Torosaurus specimen ever found, nicknamed “Tiny.” Torosaurus, a rare cousin of Triceratops, is known for its larger, thinner frill with open fenestrae (windows). In addition to a complete, disarticulated skull, approximately one quarter of the skeleton was recovered, including ribs, limb bones, and part of the pelvis.
Highlands Ranch Triceratops
Construction at the Wind Crest Senior Living Community in Highlands Ranch, Colorado, in the summer of 2019 led to the discovery of a partial skeleton of a Triceratops, the most complete yet recovered from the Denver Basin. The discovery included portions of the face and frill along with many portions of the skeleton and will help Denver Museum of Nature & Science scientists understand the ecology of the Front Range more than 66 million years ago.
Joseph Sertich, PhD
Associate Curator of Dinosaurs
Tyler R. Lyson, PhD
Associate Curator of Vertebrate Paleontology
Natalie Toth, MS
Kristen A. MacKenzie, MS
Earth Sciences Collections Manager
Business Support Specialist