http://resource.geosciml.org/classifier/ics/ischart/BaseKatianSP
label | Stratotype Point Base of Katian | |||||||||
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ratified GSSP | ![]() |
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boundary level | 4.0m above the Base of the Bigfork Chert | |||||||||
comment | Black Knob Ridge Section, Atoka, Oklahoma (USA) | |||||||||
correlation event | Graptolite FAD Diplacanthograptus caudatus | |||||||||
see also |
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source | Episodes 30/4, p.258 270, 2007 | |||||||||
status | Ratified 2006 | |||||||||
type |
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has geometry | Location of Stratotype Point Base of Katian original | |||||||||
represents boundary |
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