Earth's first steps
Subtitle: tracking life before the dinosaurs
By: Jerry MacDonald ; foreword by Martin Lockley ; introduction by Nicholas Hotton III.
Publisher: Johnson Books]; Johnson Books
Published: 1994
Place of publication: [Boulder, Colo
Language: eng
Number of pages: 290
Subjects: Footprints, Fossil -- New Mexico -- Robledo Mountains.; Paleontology -- Permian.; Animals, Fossil -- New Mexico -- Robledo Mountains.
Notes: Includes bibliographical references (p. [280]-281) and index.