Editing Cambrian (section)

==== Furongian ====
The [[Furongian]], c. 497 Ma to 486.85 ± 1.5 Ma, is the fourth and uppermost series/epoch of the Cambrian. The name was ratified by the IUGS in 2003 and replaces Cambrian Series 4 and the traditional "Upper Cambrian". The GSSP for the base of the Furongian is in the [[Wuling Mountains]], in northwestern [[Hunan|Hunan Province]], China. It coincides with the first appearance of the agnostoid trilobite ''Glyptagnostus reticulatus'', and is near the beginning of a large positive [[Δ13C|δ<sup>13</sup>C]] isotopic excursion.<ref name="Peng-2020" />

The Furongian is divided into three stages: the [[Paibian]], c. 497 Ma to c. 494 Ma, and the [[Jiangshanian]] c. 494.2 Ma to c. 491 Ma, which have defined GSSPs; and the unnamed [[Cambrian Stage 10]], c. 491 Ma to 486.85 ± 1.5 Ma.<ref name="ICS" />