- ISBN: 9780062075482 | 0062075489
- Cover: Paperback
- Copyright: 7/3/2012
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When Brother and Sister visit the Bearsonian Museum, they luck out. A r seal dinosaur dig is taking place! What sort of fossils will they find? A Stegosaurus? A Spinosaurus? The mighty Tyrannosaurus rex? Dig in with the Berenstain Bears and find out!