http://resource.geosciml.org/classifier/ics/ischart/BaseTortonianSP
ratified GSSP | ![]() |
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boundary level | mid-point of sapropel layer of basic cycle number 76 | |||||||
comment | Monte dei Corvi Beach, near Ancona, Italy | |||||||
correlation event | Calcareous nannofossil last common occurrence of Discoaster kugleri | |||||||
dc source | Episodes 28/1, p. 6 17, 2005 | |||||||
see also |
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status | Ratified 2003 | |||||||
type |
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shape | Location of Stratotype Point Base of Tortonian original |