Uberon Homology note : The tectum - a multisensory, topologically mapped structure in the roof of the midbrain
presents a remarkable degree of conservation in all vertebrate radiations; although
it varies in the extent of its development in different vertebrate classes, there
is considerable evidence now to deem its layered structure, its cell types, and its
hodological pattern as homologous in all vertebrates.[well established][VHOG];
Uberon Taxon note : In adult humans it is present only in the mesencephalon as the inferior and the superior
colliculi;