Dinosaur ghosts : the mystery of Coelophysis /
Material type:
- 0803717210
- 9780803717213
- 0803717229 (lib.)
- 9780803717220 (lib.)
- 567.9/7 20
- QE862.S3 G58 1997
Item type | Home library | Collection | Call number | Status | Barcode | |
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Chamberlin Free Public Library | Juvenile Nonfiction | J 567.9 GIL (Browse shelf(Opens below)) | Available | 34517000105448 |
Hundreds of dog-size, meat-eating dinosaurs suddenly perished 225 million years ago. Half a century ago, the bones of these Coelophysis were dug up in what is now Ghost Ranch, NM. Why did they die all at once? This book posits different answers--volcano? asteroid? poisoned water? mud? food?--and teaches en route how science evaluates hypotheses.
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