Efficacy Justification (why is this change necessary?): Create consistency of terms for material in Darwin Core.
Demand Justification (if the change is semantic in nature, name at least two organizations that independently need this term): Material Sample Task Group, which includes representatives of over 10 organizations.
Stability Justification (what concerns are there that this might affect existing implementations?): None
Implications for dwciri: namespace (does this change affect a dwciri term version)?: No
Proposed attributes of the new term version (Please put actual changes to be implemented in bold and ~strikethrough~):
Term name (in lowerCamelCase for properties, UpperCamelCase for classes): earliestPeriodOrLowestSystem
Term label (English, not normative): Earliest Period Or Lowest System
Organized in Class (e.g., Occurrence, Event, Location, Taxon): Geological Context
Definition of the term (normative): The full name of the earliest possible geochronologic period or lowest chronostratigraphic system attributable to the stratigraphic horizon from which the cataloged itemdwc:MaterialEntity was collected.
Usage comments (recommendations regarding content, etc., not normative):
Term change
Current Term definition: https://dwc.tdwg.org/list/#dwc_earliestPeriodOrLowestSystem
Proposed attributes of the new term version (Please put actual changes to be implemented in bold and ~strikethrough~):
cataloged itemdwc:MaterialEntity was collected.