Temporal_Coverage (Q21)

A record of a time range represented by the collection's establishment or change over time. This term is separate from the living or geologic periods represented by the objects in the collection. This class can be used to reflect temporal coverage of the collection within various contexts (defined by the temporalCoverageType property). Examples might include the time range in which objects within the collection were collected or the time period over which the collection was assembled. It should not be used to document the time range within which the objects in the collection were alive, and if the time period you are trying to describe is better described by the `CollectionHistory`, `GeologicalContext` or `ChronometricAge` classes, or `period` property of the `ObjectGroup` class, then those classes or properties should be used instead. For example, the `period` property of the ObjectGroup class and/or GeologicalContext class should be used to record named time periods.