|Cambrian Stage 10|
|Regional usage||Global (ICS)|
|Time scale(s) used||ICS Time Scale|
|Time span formality||Formal|
|Lower boundary definition||Not formally defined|
|Lower boundary definition candidates||FAD of the Trilobite Lotagnostus americanus|
|Lower boundary GSSP candidate section(s)||Duibian, Zhejiang, China|
|Upper boundary definition||FAD of the Conodont Iapetognathus fluctivagus.|
|Upper boundary GSSP||Greenpoint section, Green Point, Newfoundland, Canada|
|Upper GSSP ratified||2000|
Stage 10 of the Cambrian is the still unnamed third and final stage of the Furongian series. It follows the Jiangshanian and precedes the Ordovician Tremadocian Stage. The proposed lower boundary is the first appearance of the trilobite Lotagnostus americanus around 489.5 million years ago, but other fossils are also being discussed (see below). The upper boundary is defined as the appearance of the conodont Iapetognathus fluctivagus which marks the beginning of the Tremadocian and is radiometrically dated as 485.4 million years ago.
Strat Chart 2012was invoked but never defined (see the help page).
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