http://resource.geosciml.org/classifier/ics/ischart/BaseGzhelianSP
| label | Stratotype Point Base of Gzhelian | |||||||
|---|---|---|---|---|---|---|---|---|
| comment | candidates are in southern Urals or Nashui (south China). | |||||||
| correlation event | Conodont FAD Idiognathodus simulator (s.str.). Close to FAD of ammonoid Shumardites. | |||||||
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| see also | index.html original | |||||||