Fig. 3From: Morphology and features of Cambrian oncoids and responses to palaeogeography of the North China PlatformMacroscopic characteristics of oncoids in the Cambrian Miaolingian Series, North China Platform. a Oncoids from the Xuzhuang Formation, Wuhai section; b Oncoids from the Zhangxia Formation, Diaoquan section; c Oncoids from the Xuzhuang Formation, Xiaweidian section; d Oncoids from the Zhangxia Formation, Sandaogou section; e Oncoids from the Zhangxia Formation, Fuzhou Bay section; f Oncoids from the Zhangxia Formation, Jinzhou Bay sectionBack to article page