Miaolingian

EtymologyName formalityFormalName ratifiedJune 25, 2018Former name(s)Cambrian Series 3Usage informationCelestial bodyEarthRegional usageGlobal (ICS)Time scale(s) usedICS Time ScaleDefinitionChronological unitEpochStratigraphic unitSeriesTime span formalityFormalLower boundary definitionFAD of the TrilobiteOryctocephalus indicus.Lower boundary GSSP, Guizhou, China
26°44.843′N108°24.830′E / 26.747383°N 108.413833°E / 26.747383; 108.413833Lower GSSP ratifiedJune 25, 2018Upper boundary definitionFAD of the Trilobite Glyptagnostus reticulatusUpper boundary GSSPPaibi section, Paibi, Hunan, China
28°23.37′N109°31.54′E / 28.38950°N 109.52567°E / 28.38950; 109.52567Upper GSSP ratified2003

The Miaolingian or Mid-Late Cambrian is the third Series of the Cambrian Period, and was formally named in 2018. It lasted from about 506.5 to 497 million years ago and is divided in ascending order into 3 stages: the Wuliuan, Drumian, and Guzhangian. The Miaolingian is preceded by the unnamed Cambrian Series 2 and succeeded by the Furongian series.

It is named after the in southeastern Guizhou Province, China.