Intermezzoa
Intermezzoa is a term used in some discussions of eukaryotic taxonomy to denote a proposed clade or informal grouping that would lie between major eukaryotic lineages in the early diversification of the group. The idea is to identify a set of lineages whose relationships are uncertain or weakly resolved by traditional morphology but show some shared molecular signatures, effectively describing an evolutionary "intermezzo" rather than a defined, monophyletic group.
Because intermezzoa are not defined by universally accepted diagnostic features and because phylogenetic methods and data
Consequently, Intermezzoa is generally treated as an informal or historical term rather than a formal taxon,
With advances in phylogenomics and large-scale datasets, current taxonomy emphasizes well-supported clades and clearly defined supergroups;