3Fossil sites
Houziguan Formation
Houziguan Formation in China: 3 fossil sites. Typical age: 264–260 million years (Permian).
3Fossil sites
3Finds
264–260 million yearsTypical age
PermianMain period
Where its fossils were found
Permian
By geological period
Permian3
What was found
Ammonites · 3Eumedlicottia, Propinacoceras, Agathiceras
Towns with the most fossil sites nearby
Other formations of the same period
Permian
Changxing Formation 798Dalong Formation 441Qixia Formation 354Maokou Formation 340Longtan Formation 318Wujiaping Formation 159Heshan Formation 111Yanshi Formation 72Xiala Formation 63Loping Formation 57Kufeng Formation 39Maping Formation 37Keziliqiman Formation 36Chuanshan Formation 35Shaiwa Formation 33Shazipo Formation 30Shanxi Formation 29Qubuerga Formation 29Qipan Formation 29Wangjiazhai Formation 27Taiyuan Formation 26Angjie Formation 24Dingjiashan Formation 23Lugu Formation 23