January 25, 2021
Individual orders: I updated this section in order to include the latest changes of Kuhl et al. (2021).
December 09, 2020
Aequornithes, Pelecaniformes: I expanded the Pelecaniformes at the expense of the former Ardeiformes and Plataleiformes, which have been eliminated.
November 24, 2020
Note: „Neglected clades“: I added this chapter hoping to direct future research efforts towards
some selected clades that have largely been neglected in phylogenetic studies.
November 21, 2020
Strisores: Following Chen & Field (2020), I added the newly coined clade names Letornithes and Sedentaves
to the taxonomy of Strisores. However, I will not follow their suggestions for panclade names. (Please refer the Appendix 2 for further information).
November 15, 2020
Note: „Avian orders“: I added this chapter hoping to launch a discussion on the question: What is an avian order?
November 3, 2020
Palaeognathae: I adopt the phylogeny of Kuhl et al. (2021). However, the reconstruction of the phylogeny of Palaeognathae remains problematic. I guess this is largely due to the fact that, apart from their neognathous sister-clade, relevant outgroups diverged a long time ago, e.g. turtles some 170mya and crocodiles some 150mya.
October 24, 2020
Higher phylogeny: I adopt the phylogeny of Kuhl at al. (2021), because of the broad taxonomic coverage (all 106 non-passerine and 115 passerine families) and the conclusive results. They found that 3’UTR sequences yielded a well-resolved and stable tree-topology. Their results confirm most previous assumptions.