UPPER DEVONIAN (STRATIGRAPHY)
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BTDEVONIAN (STRATIGRAPHY)
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UDC551.734.5
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Descriptor GEROBERDEVON (STRATIGRAPHIE)
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Descriptor ENGUPPER DEVONIAN (STRATIGRAPHY)
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Descriptor FREDEVONIEN/SUPERIEUR (STRATIGRAPHIE)
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Variant GEROBERES DEVON (STRATIGRAPHIE)
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Variant GERDEVON/OBERES DEVON (STRATIGRAPHIE)
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Variant ENGDEVONIAN/UPPER DEVONIAN (STRATIGRAPHY)
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NTACADIAN OROGENY (STRATIGRAPHY)
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NTFAMENNIAN (STRATIGRAPHY)
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NTFRASNIAN (STRATIGRAPHY)
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RTDEVONIAN (STRATIGRAPHY)