Concepts
From Species File Help
tblTConcepts contains taxon concepts future development.
TConceptID, int, primary key TaxonNameID, int RefID, int, = tblRefs.RefID Revision, smallint Status, tinyint, (current, superceded, invalid, other states?) LastUpdate, smalldatetime, date and time of last update ModifiedBy, integer, 2 bytes, UserID of the signon that made the change