Visual concept diagrams place diminished subtypes and added-attribute subtypes at the same level.

Evidence

Thus in figure 3.1 the diminished subtype “illiberal democracy” appears at the same level as “parliamentary democracy.” Parliamentary democracy is a classic concept+/adjective. So in visual terms these seem to be at the same level even though in one case (illiberal democracy) we have removed an attribute and in the other (parliamentary democracy) we have added one. — Gary Goertz, Social Science Concepts, 538

Categorization

• XREF: Connects to the book’s earlier treatment of diminished subtypes versus concept+adjective constructions, which this page shows collapse into one visual tier.
• SEED: An essay on why taxonomy diagrams lie: how spatial layout smuggles in false equivalence between logically opposite operations.