UNITED STATES DEPARTMENT OF THE INTERIOR
Fred A. Seaton, Secretary
NATIONAL PARK SERVICE
Conrad L. Wirth, Director
For sale by the Superintendent of Documents,
U. S. Government Printing Office
Washington 25, D. C. Price 25 cents
THE DINOSAUR
QUARRY
DINOSAUR NATIONAL MONUMENT
Colorado · Utah
By John M. Good, Theodore E. White and Gilbert F. Stucker
NATIONAL PARK SERVICE · Washington, D. C., 1958
The National Park System, of which Dinosaur NationalMonument is a unit, is dedicated to conserving thescenic, scientific, and historic heritage of the UnitedStates for the benefit and enjoyment of its people.
Contents
- Page
- THE QUARRY 2
- THE DINOSAURS 3
- First Discoveries 3
- Position of Dinosaurs Among Reptiles 4
- Geologic History 4
- What They Looked Like 6
- Temperature Tolerance 10
- Gizzard Stones 11
- THE CLIMATE, LIFE, AND LANDSCAPE OF JURASSIC TIME 12
- How Do We Know? 14
- ANIMALS FROM THE QUARRY 15
- Why So Many? 19
- How Were They Preserved? 21
- How Were They Exposed? 24
- WHY DID DINOSAURS BECOME EXTINCT? 25
- HISTORY AND DEVELOPMENT OF THE QUARRY 26
- Discovery and Early Years 26
- Starting the Quarry 28
- Extent and Development of the Find 28
- Work Methods 32
- Further Development 34
- Protecting the Quarry 35
- Present Development 37
- THE SCENE TODAY 38
- KEY TO PRONUNCIATION 46
- SUGGESTED READINGS 47