Stratotype Point Base of Drumian
http://resource.geosciml.org/classifier/ics/ischart/BaseDrumianSP
| label | Stratotype Point Base of Drumian | |||||||||
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| ratified GSSP |  |
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| boundary level | at the Base of a dark gray thinly laminated calcisiltite layer, 62 m above the Base of the Wheeler Formation | |||||||||
| comment | Drum Mountains, Millard County, Utah, USA | |||||||||
| correlation event | Agnostoid arthropod FAD Ptychagnostus atavus | |||||||||
| see also |
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| source | Episodes 30/2,p. 85 95, 2007 | |||||||||
| status | Ratified 2006 | |||||||||
| type |
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| has geometry | Location of Stratotype Point Base of Guzhangian original | |||||||||
| represents boundary |
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