1941310
9780064452175
Millions of years ago, dinosaurs left their footprints all over the earth. With each discovery of a dinosaur footprint, ichnologists--scientists who study dinosaur tracks--learn more about these ancient creatures and the world they lived in. Read and find out how to step back into history through the footprint of a dinosaur.Zoehfeld, Kathleen Weidner is the author of 'Dinosaur Tracks', published 2007 under ISBN 9780064452175 and ISBN 0064452174.
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