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Mason, Timothy Peter

The last synapsid / Timothy Mason. - 1st ed. - 311 p. : ill. ; 22 cm. - A yearling book .

On a mountain near their tiny town of Faith, Colorado, best friends Rob and Phoebe discover a squat, drooly creature from thirty million years before the dinosaurs, that needs their help in tracking down a violent carnivore that must be returned to its proper place in time, or humans will never evolve.

ISBN: 9780385735810 (trade) 0385735812 (trade) 9780385905671 (library) 038590567X (library) 9780440422686 (softcover)

LCCN: 2008035678

Subjects--Topical Terms:
Reptiles, Fossil.--Juvenile fiction.
Time travel--Juvenile fiction.
Space and time--Juvenile fiction.
Prehistoric animals--Fiction.
Time travel--Fiction.
Space and time--Fiction.

Subjects--Geographic Terms:
Colorado--Juvenile fiction.
Colorado--Fiction.

LC Class. No.: PZ7.M42324 / Las 2009

Dewey Class. No.: 813.54 / M412L