The finer groupings inside one of this atlas's content categories, dividing a large content type into named bands a reader can browse directly, such as Kinship Terminology Systems within Kinship and Family Systems, or Sociology within Social Theorists. Belongs here: a subcategory entity minted for one specific content type, carrying the SubLabel value its member entities are tagged with so the render groups them correctly. Does not belong here: a sub group finer than a subcategory, which carries a clean label only and no page or prose of its own, or a category-level page covering the whole type, which is a category rather than a subcategory.