---+++ AbcdConcept0137

---+++++ Identifier

<verbatim>DataSets/DataSet/Units/Unit/UnitGUID</verbatim>



---+++++ Group

Meta

---+++++ Subgroup


---+++++ Full Name

Unit record GUID

---+++++ Documentation

A globally unique identifier for the unit or the unit record.

---+++++ Content

A globally unique identifier for the unit record. Following DwC, in the absence of a persistent global unique identifier, this should be constructed in the form URN:catalog:[SourceInstitutionID]:[SourceID]:[UnitID]".

---++++ Recommended or Prescribed Values


---+++++ Example Value
URN:catalog:B:10:0012012

---+++++ Example Explanation
Sheet number 0012013 in collection 20 (pteridophytes) of the herbarium at the BGBM Berlin-Dahlem (Index Herbariorum Standard Code "B").

---+++++ Reviewer
W. Berendsohn 6 Sept 2005

---++++ Editorial Notes