InGen Database Description
The Yuliangze Formation (also known as the Yuliangzi Formation) is located near Heilongjiang in China. It underlies the Taipinglinchang Formation and dates to the Maastrichtian age of the Late Cretaceous epoch, 69 million years ago.
Jiayin and Wulaga are two particularly rich fossil sites within this formation. The formation comprises mainly of sandstone and mudstone with fluvial deposits. Some conglomerate is also present. These indicate waterways or lakes and ponds. Coarse channel fills also suggest rivers.
Dinosaur fossils in this region are dominated by hadrosaurs, but other remains have been retrieved.
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