99 pages, 33 colour photos and colour illustrations
In February 2000, while excavating his property in St. George, Utah, Sheldon Johnson turned over a piece of ground and discovered a fully preserved dinosaur footprint. That track was the first of many fossils to be uncovered. Five years later, the St. George Dinosaur Discovery Site (SGDS) at Johnson Farm was established to preserve one of the richest and oldest dinosaur-age fossil sites in Utah.
Tracks in Deep Time presents, for the first time, an engaging, thoroughly readable account of the history, geology, and paleontology of this important site. Two hundred million years ago, Lake Dixie covered this area. Within its waters and along its shores, a diverse ecosystem of organisms thrived, leaving behind thousands of footprints and other fossils preserved in layers of rock. Unusual fossils found here include the world's largest collection of tracks left by swimming dinosaurs, and one of only six traces known to have been made by a sitting, meat-eating dinosaur. With approachable text and lavish, full-color photographs and illustrations, Jerald Harris and Andrew Milner describe how geologists and paleontologists have painstakingly reconstructed a vivid snapshot of life from the Early Jurassic.
"This book will enhance the experience of anyone visiting the St. George Dinosaur Discovery Site. It provides an exceptional opportunity for readers to explore the thrill of scientific discovery and the enchantment of Utah's prehistoric life."
– Frank L. Decourten, author of Dinosaurs of Utah and The Broken Land: Adventures in Great Basin Geology
List of Figures
A Note to Readers: Fossil Laws
4. Body Fossils
5. Lake Dixie
Suggested Further Reading
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Jerald D. Harris is the director of paleontology at Dixie State University in St. George, Utah, USA, and is an advisor to the Dinosaur Discovery Site at Johnson Farm.
Andrew R. C. Milner is the site paleontologist and curator at the St. George Dinosaur Discovery Site at Johnson Farm. He has been at the site since its inception and now runs the museum's preparation laboratory and conducts field work in southern Utah, USA.