Qingshan Group

The Qingshan Group is a geological group in Shandong, China, whose strata date back to the Barremian to Albian stages of the Early Cretaceous. The group contains the Doushan Formation. Dinosaur remains are among the fossils that have been recovered from the formation.

Fossil content
The following fossils were reported from the Doushan Formation:
 * Pachygenys thlastesa
 * Psittacosaurus sinensis - "More than [twenty] individuals,[five] complete skulls, [three] articulated skeletons."
 * P. youngi "Partial skeleton with skull."
 * Possible indeterminate dsungaripterid pterosaur remains
 * Indeterminate titanosaur remains