[tdwg-content] Darwin Core Public Commentary 2023-06-20: Material Sample

[John Wieczorek]

The members of the Darwin Core Maintenance Group are happy to announce the
opening of a minimum 30-day period for public review for a set of proposed
changes to Darwin Core coming out of research and discussions in the Material
Sample Task Group <https://www.tdwg.org/community/osr/material-sample/>,
ably led by Teresa Mayfield-Meyer over the past two years.

Please refer to the documentation we have provided on the review process
and the maintenance of the Darwin Core standard in general at
https://github.com/tdwg/dwc/wiki/Darwin-Core
-Maintenance-Frequently-Asked-Questions.

For your reference and convenience we are providing a table with links to
the proposed changes, organized in keeping with the order in the
Darwin Core Quick
Reference Guide (https://dwc.tdwg.org/terms/). The relevant issues are also
listed in the following milestone: https://github.com/tdwg/dwc/milestone/18.

Your comments are welcome and important for the evolution of the Darwin Core
 standard.

Thank you,

The Darwin Core Material Sample Task Group
The Darwin Core Maintenance Team

Category Term Issue Action Nature
Record-level references https://github.com/tdwg/dwc/issues/456 change
non-normative
Record-level basisOfRecord https://github.com/tdwg/dwc/issues/457 change
non-normative
MaterialEntity https://github.com/tdwg/dwc/issues/426 new normative
MaterialSample https://github.com/tdwg/dwc/issues/451 change normative
MaterialEntity materialEntityID https://github.com/tdwg/dwc/issues/455 new
normative
MaterialEntity preparations https://github.com/tdwg/dwc/issues/452 change
normative
MaterialEntity disposition https://github.com/tdwg/dwc/issues/453 change
normative
MaterialEntity verbatimLabel https://github.com/tdwg/dwc/issues/458 change
non-normative
MaterialEntity materialEntityRemarks https://github.com/tdwg/dwc/issues/461
new normative
GeologicalContext earliestEonOrLowestEonothem
https://github.com/tdwg/dwc/issues/465 change normative
GeologicalContext latestEonOrHighestEonothem
https://github.com/tdwg/dwc/issues/474 change normative
GeologicalContext earliestEraOrLowestErathem
https://github.com/tdwg/dwc/issues/467 change normative
GeologicalContext latestEraOrHighestErathem
https://github.com/tdwg/dwc/issues/476 change normative
GeologicalContext earliestPeriodOrLowestSystem
https://github.com/tdwg/dwc/issues/469 change normative
GeologicalContext latestPeriodOrHighestSystem
https://github.com/tdwg/dwc/issues/478 change normative
GeologicalContext earliestEpochOrLowestSeries
https://github.com/tdwg/dwc/issues/466 change normative
GeologicalContext latestEpochOrHighestSeries
https://github.com/tdwg/dwc/issues/475 change normative
GeologicalContext earliestAgeOrLowestStage
https://github.com/tdwg/dwc/issues/464 change normative
GeologicalContext latestAgeOrHighestStage
https://github.com/tdwg/dwc/issues/473 change normative
GeologicalContext lowestBiostratigraphicZone
https://github.com/tdwg/dwc/issues/479 change normative
GeologicalContext highestBiostratigraphicZone
https://github.com/tdwg/dwc/issues/472 change normative
GeologicalContext lithostratigraphicTerms
https://github.com/tdwg/dwc/issues/462 change normative
GeologicalContext group https://github.com/tdwg/dwc/issues/471 change
normative
GeologicalContext formation https://github.com/tdwg/dwc/issues/470 change
normative
GeologicalContext member https://github.com/tdwg/dwc/issues/480 change
normative
GeologicalContext bed https://github.com/tdwg/dwc/issues/463 change
normative
GeologicalContext dwciri:earliestGeochronologicalEra
https://github.com/tdwg/dwc/issues/468 change normative
GeologicalContext dwciri:latestGeochronologicalEra
https://github.com/tdwg/dwc/issues/477 change normative
MeasurementOrFact https://github.com/tdwg/dwc/issues/459 change normative
ResourceRelationship https://github.com/tdwg/dwc/issues/460 change normative
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