basisOfRecord, class, dcterms:bibliographicCitation and specificEpithet each appear twice among the 187 fields in a Darwin Core TSV export. These are pseudo-duplicates, because in the two ca 500000-records sets I downloaded on 3 August 2017, the two "class", "dcterms:bibliographicCitation" and "specificEpithet" fields had very different content, i.e., wrong values in one of the pseudo-replicates.
basisOfRecord, class, dcterms:bibliographicCitation and specificEpithet each appear twice among the 187 fields in a Darwin Core TSV export. These are pseudo-duplicates, because in the two ca 500000-records sets I downloaded on 3 August 2017, the two "class", "dcterms:bibliographicCitation" and "specificEpithet" fields had very different content, i.e., wrong values in one of the pseudo-replicates.