http://resource.geosciml.org/classifier/ics/ischart/BaseSilurianSP
label | Stratotype Point Base of Rhuddanian | |||||||
---|---|---|---|---|---|---|---|---|
alt label |
|
|||||||
ratified GSSP | ||||||||
boundary level | 1.6m above theBase of the Birkhill Shale Formation | |||||||
comment | Dobs Linn, Scotland | |||||||
correlation event | Graptolite FAD Akidograptus ascensus | |||||||
see also |
|
|||||||
source |
|
|||||||
status | Ratified 1984 | |||||||
type |
|
|||||||
has geometry | Location of Stratotype Point Base of Silurian original | |||||||
represents boundary |
|