TY  - BOOK
AU  - MacDonald,Jerry
TI  - Earth's first steps: tracking life before the dinosaurs 
SN  - 9781555661199
U1  - 560.1729 
PY  - 1994///
CY  - Boulder, Colo.
PB  - Jerry MacDonald
KW  - Footprints, Fossil
KW  - New Mexico
KW  - Robledo Mountains
KW  - Paleontology
KW  - Permian
KW  - Animals, Fossil
N1  - Includes bibliographical references (p. [280]-281) and index
ER  -