http://resource.geosciml.org/classifier/ics/ischart/BaseAeronianSP
label | Stratotype Point Base of Aeronian | |||||||
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ratified GSSP | ||||||||
boundary level | within Trefawar Formation | |||||||
comment | Trefawr Track Section, Wales, UK | |||||||
correlation event | Graptolite FAD Monograptus austerus Sequens | |||||||
see also |
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source |
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status | Ratified 1984 | |||||||
type |
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has geometry | Location of Stratotype Point Base of Aeronian original |