17Fossil sites
Xikou Formation
Xikou Formation in China: 17 fossil sites. Typical age: 252–251 million years (Triassic).
17Fossil sites
10Finds
252–251 million yearsTypical age
TriassicMain period
Where its fossils were found
Triassic
By geological period
Triassic17
What was found
Ammonites · 10Hypophiceras, Lytophiceras, Ophiceras
Towns with the most fossil sites nearby
Other formations of the same period
Triassic
Daye Formation 315Kangshare Formation 142Feixianguan Formation 141Luolou Formation 132Qingyan Formation 91Falang Formation 79Yinkeng Formation 74Tulong Formation 66Anshun Formation 53Kayitou Formation 47Yelang Formation 43Qinglong Formation 42Guanling Formation 39Ermaying Formation 37Dajialian Formation 31Majiaoling Formation 24Bolila Formation 22Junzihe Formation 22Naocangjiangou Formation 20Baijizu Formation 20Yingshuiquan Formation 18Yazhi Formation 18Helongshan Formation 18Jianghe Formation 17