Stratotype Point Base of Aptian
http://resource.geosciml.org/classifier/ics/ischart/BaseAptianSP
| label | Stratotype Point Base of Aptian | |||||||
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| ratified GSSP |  |
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| comment | candidate is Gorgo a Cerbara, Piobbico, Umbria-Marche, central Italy | |||||||
| correlation event | Magnetic -- Base of Chron M0r; near FAD of Paradeshayesites oglanlensis ammonite zone | |||||||
| type |
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| represents boundary |
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| see also | index.html original | |||||||