early stage of Early Cretaceous epoch
late period of early Cretaceous epoch
late Early Cretaceous-early Late Cretaceous
Early Cretaceous
早白垩世
城子河组
黑龙江东部
下白垩统
张强凹陷
白垩纪
早白垩纪
捷嘎组
Early Cretaceous in Hebei and Liaoning provinces
Early Cretaceous Jiufotang Formation
Early Cretaceous volcanic rocks
early Early Carboniferous
early period of Early Cretaceous
Late Carboniferous-early Early Permian
late Cretaceous-early Paleogene
late Early Cretaceous or early Late Cretaceous
Late Jurassic to Early Cretaceous
Late Jurassic-Early Cretaceous
Late Jurassic-Early Cretaceous basalt