This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
TreeCoclassRootQ. This diagram shows the descendant tree of the root restricted to finite groups with coclass All vertices possess an abelianization of type Important vertices are labelled with their SmallGroups Library identifier in angle brackets TTT means transfer target type TKT means transfer kernel type The mainline descendant