Mason, Timothy Peter <br/><br/>
The last synapsid / 
Timothy Mason. 
 - 1st ed. 
 - 311 p. :  ill. ;  22 cm. 
 - A yearling book .
<br/><br/> 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. 
<br/><br/><label>ISBN: </label>9780385735810 (trade) 0385735812 (trade) 9780385905671 (library) 038590567X (library) 9780440422686 (softcover) 
<br/><br/><label>LCCN: </label>2008035678 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reptiles, Fossil.--Juvenile fiction.<br/>Time travel--Juvenile fiction.<br/>Space and time--Juvenile fiction.<br/>Prehistoric animals--Fiction.<br/>Time travel--Fiction.<br/>Space and time--Fiction.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Colorado--Juvenile fiction.<br/>Colorado--Fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.M42324  / Las 2009 
<br/><br/><label>Dewey Class. No.: </label>813.54  / M412L