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originalNameUsageID (http://rs.tdwg.org/dwc/terms/originalNameUsageID)

@return [String]
The taxonID of the record representing the name that was originally
established under the rules of the associated nomenclaturalCode (i.e.,
within the namePublishedIn reference). This may be known as the
basionym (botany) or basonym (bacteriology) of the scientificName or
the senior/earlier homonym for replaced names.

Example: “101” 8fa58e08-08de-4ac1-b69c-1235340b7001
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