Miaolingian

Miaolingian
A map of Earth as it appeared 505 million years ago during the Miaolingian Series, Wuliuan Stage
Chronology
−540 —
−535 —
−530 —
−525 —
−520 —
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−510 —
−505 —
−500 —
−495 —
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Paleozoic
 
 
 
 
Orsten Fauna
Dresbachian extinction
Archaeocyatha extinction
SSF diversification, first brachiopods & archaeocyatha
Subdivision of the Cambrian according to the ICS, as of 2024.
Vertical axis scale: Millions of years ago
Etymology
Name formalityFormal
Name ratifiedJune 25, 2018
Former name(s)Cambrian Series 3
Usage information
Celestial bodyEarth
Regional usageGlobal (ICS)
Time scale(s) usedICS Time Scale
Definition
Chronological unitEpoch
Stratigraphic unitSeries
Time span formalityFormal
Lower boundary definitionFAD of the Trilobite Oryctocephalus indicus.
Lower boundary GSSPWuliu-Zengjiayan, Guizhou, China
26°44.843′N 108°24.830′E / 26.747383°N 108.413833°E / 26.747383; 108.413833
Lower GSSP ratifiedJune 25, 2018
Upper boundary definitionFAD of the Trilobite Glyptagnostus reticulatus
Upper boundary GSSPPaibi section, Paibi, Hunan, China
28°23.37′N 109°31.54′E / 28.38950°N 109.52567°E / 28.38950; 109.52567
Upper 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 Miaoling Mountains in southeastern Guizhou Province, China.