Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Subordo: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Cladus: Telluraves
Cladus: Australaves
Ordo: Passeriformes
Subordo: Tyranni
Infraordo: Tyrannides
Parvordo: Thamnophilida
Familia: Thamnophilidae
Genus: Willisornis
Species: W. poecilinotus – W. vidua
Name
Willisornis Agne & Pacheco, 2007
Typus: Hypocnemis poecilinota Cabanis, 1847 = Willisornis poecilinotus
Synonyms
Dichropogon Chubb, 1918 Ann.Mag.nat.Hist. p. 124 BHL
References
Primary references
Agne, C.E.Q. & Pacheco, J.F. 2007. A homonymy in Thamnophilidae: a new name for Dichropogon Chubb. Revista Brasileira de Ornitologia 15: 484–485. Full article view Reference page.
Additional references
Brumfield, R. T., Tello, J.G., Cheviron, Z.A., Carling, M.D., Crochet, N. & Rosenberg, K.N. 2007. Phylogenetic conservatism and antiquity of tropical specialization: army-ant-following in the typical antbirds (Thamnophilidae). Molecular Phylogenetics and Evolution 45: 1–13. DOI: 10.1016/j.ympev.2007.07.019 AbstractReference page.
Isler, M. L. & Whitney, B.M. 2011. Species limits in antbirds (Thamnophilidae): the Scale-backed Antbird (Willisornis poecilinotus) complex. The Wilson Journal of Ornithology 123(1): 1-14 Abstract DOI: 10.1676/10-082.1Reference page.
Willisornis is a genus of insectivorous passerine birds in the antbird family, Thamnophilidae. These small, strongly sexually dichromatic birds are native to the Guianas and Amazon rainforest in South America, and often follow army ants.
Taxonomy
The genus Willisornis was erected by the Brazilian ornithologists Carlos Agne and José Fernando Pacheco in 2007. The genus is named after the American ornithologist Edwin O'Neill Willis.[1] The common scale-backed antbird had traditionally been included in the genus Hylophylax, but is now known to belong to a different clade. The name Dichropogon was used briefly instead, but this name is preoccupied by a genus of asilid flies (Dichropogon Bezzi, 1910).[1][2][3]
The two species are:[4]
Common scale-backed antbird (Willisornis poecilonotus)
Xingu scale-backed antbird (Willisornis vidua)
The two species were previously considered conspecific. They were split based on the differences in their vocalization.[5][6]
References
Agne, C.E.Q.; Pacheco, J.F. (2007). "A homonymy in Thamnophilidae: a new name for Dichropogon Chubb". Revista Brasileira de Ornitologia. 15 (3): 484–485.
Brumfield, R.T. (June 2007). "Proposal (286): Revive the genus Dichropogon". South American Classification Committee of the American Ornithological Society. Retrieved 6 February 2018.
Agne, Carlos Eduardo; Pacheco, Jose Fernando (March 2008). "Proposal (340): Reassign Dichropogon to Willisornis". South American Classification Committee of the American Ornithological Society. Retrieved 6 February 2018.
Gill, Frank; Donsker, David, eds. (2018). "Antbirds". World Bird List Version 8.1. International Ornithologists' Union. Retrieved 4 February 2018.
Isler, M.L.; Whitney, B.M. (2011). "Species limits in antbirds (Thamnophilidae): the Scale-Backed Antbird (Willisornis poecilinotus) complex". Wilson Journal of Ornithology. 123 (1): 1–14. doi:10.1676/10-082.1.
Zimmer, Kevin (September 2011). "Proposal (495): Split Willisornis vidua from Willisornis poecilinotus". South American Classification Committee of the American Ornithological Society. Retrieved 6 February 2018.
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