Concept information
Preferred term
Stage 10
Definition
- 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. The 10th stage of the Cambrian has not been formally named by the ICS yet, although a number of local names exist. Several authors favor the name "Lawsonian" after Lawson Cove, in the Wah Wah Mountains of Utah. The lower part of the North American Skullrockian Stage corresponds roughly to the Cambrian Stage 10. (Adapted from: https://en.wikipedia.org/wiki/Cambrian_Stage_10)
Broader concept
Entry terms
- 10th Cambrian stage
- 10th stage of the Cambrian
- Cambrian Stage 10
- Stage 10 of the Cambrian
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/QX8-X2NZX7FX-H
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