In most cases, researchers draw phylogenetic trees in such a way as to record only those events that are relevant to a set of living taxa. Most commonly, these taxa are species. For example ...

Mapping those behaviors onto the avian phylogenetic tree revealed that the trait spans from some of the most basal bird families, including pheasants and ducks, to more recently evolved taxa such as ...

Adaptive radiations and stasis -- Phylogenetic trees across the order Primates Phylogenetic ... open habitats that led to a decline of hominoid taxa in Eurasia. By 5 mya, most ape species were ...