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Scheme: ABCD EFG Pencil.png
Collection: EFG EarthScienceSpecimen Pencil.png
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UnitStratigraphicDetermination (also /EarthScienceSpecimen/UnitStratigraphicDetermination): Formal stratigraphic date or correlation for an individual earth science unit (e.g. a single fossil specimen). Use efgGathering for site-related stratigraphy. This allows for individual specimens to be given an exact stratigraphic date and the wider stratigraphy of the site to also be listed.

Constraints in the context of ABCD EFG: