"Zoonomen Nomenclatural data" maintained by Alan P. Peterson at http://www.zoonomen.net
Journal/Book Name, Vol. No.:
The phylogeny of Strisores (a clade encompassing hummingbirds, swifts, owlet-nightjars, frogmouths, nightjars, potoos, and the oilbird) is contentious. IOC (v8.2, 2018) '[proposes] to merge Apodiformes, including owlet-nightjars as well as swifts and hummingbirds, with the Caprimulgiform nightbirds to define a spectacular basal adaptive radiation of Neoaves.' ITIS here follows Zoonomen (2018) in recognizing potoos and the oilbird at order rank, Nyctibiiformes and Steatornithiformes respectively. This approach was argued and adopted by the South American Classification Committee by Van Remsen (February, 2016) in Proposal 703 (http://www.museum.lsu.edu/~Remsen/SACCprop703.htm)
ITIS taxonomy is based on the latest scientific consensus available,
and is provided as a general reference source for interested parties.
However, it is not a legal authority for statutory or regulatory purposes.
While every effort has been made to provide the most reliable and up-to-date
information available, ultimate legal requirements with respect to species
are contained in provisions of treaties to which the United States is a
party, wildlife statutes, regulations, and any applicable notices that have
been published in the Federal Register. For further information on U.S.
legal requirements with respect to protected taxa, please contact the
U.S. Fish and Wildlife Service.