The photo taken on April 13, 2005 shows a bird fossil belonging to the early Cretaceous period which is unearthed in Ningcheng County, Chifeng City of north China's Inner Mongolia Autonomous Region.
The photo taken on April 13, 2005 shows some egg fossils of reptiles with embryos inside. Those fossils were unearthed in Bayannur City of north China's Inner Mongolia Autonomous Region and were believed belonging to the late Cretaceous period.
The photo taken on April 13, 2005 shows a well-preserved skin fossil of hadrosaur which is unearthed in Bayannur League of north China's Inner Mongolia Autonomous Region.
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