Age uncertain - the material derives from the Yanshiping Group, which ranges from the middle Jurassic to earliest ... [details]
Age uncertain - the material derives from the Yanshiping Group, which ranges from the middle Jurassic to earliest ... [details]
Age uncertain - the material derives from the Yanshiping Group, which ranges from the middle Jurassic to earliest ... [details]
West of Baqing, Nierong, Tibet, China [details]
West of Baqing, Nierong, Tibet, China [details]
Bengqu, Nierong, Tibet, China [details]