30Fossil sites
Iren Dabasu Formation
Iren Dabasu Formation in China: 30 fossil sites. Typical age: 84–72 million years (Cretaceous).
30Fossil sites
40Finds
84–72 million yearsTypical age
CretaceousMain period
Where its fossils were found
Cretaceous
By geological period
Cretaceous30
What was found
Dinosaurs · 40Bactrosaurus, Archaeornithomimus, Paraspheroolithus, Gilmoreosaurus, Alectrosaurus, Neimongosaurus, Erliansaurus, Sonidosaurus, Gigantoraptor, Caenagnathasia, Urbacodon
Towns with the most fossil sites nearby
Other formations of the same period
Cretaceous
Yixian Formation 214Jiufotang Formation 66Langshan Formation 44Laiyang Formation 35Jiaozhou Formation 32Pingling Formation 30Jiaguan Formation 23Zhoutian Formation 23Tuchengzi Formation 21Bayan Mandahu Formation 21Zhutian Formation 21Tianjialou Formation 20Zhaoying Formation 19Zhonggou Formation 17Xiagou Formation 17Chichengshan Formation 17Yuanpu Formation 16Gaogou Formation 16Jingangkou Formation 15Jianchuan Formation 14Dabeigou Formation 14Hutubihe Formation 14Huachi-Huanhe Formation 13Lengshuiwu Formation 11