Super and subunits¶
In the OpenAtlas database a Stratigraphic unit is a subunit of a Feature. A Feature can consist of one or more Stratigraphic units (e.g. grave as feature can contain one or more burials, a backfilling, etc.). Stratigraphic units themselves are structured in the same way and can be connected to Finds (see: Artifact) and Human remains as their subunits.