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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Subsectio: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Theropoda
Cladus: Neotheropoda
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Euornithes
Cladus: Ornithuromorpha
Cladus: Ornithurae
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Ordo: Bucerotiformes

Familia: Bucerotidae
Genus: Tockus
Species: T. alboterminatusT. bradfieldiT. camurus – T. damarensis – T. deckeni – T. erythrorhynchus – T. fasciatus – T. flavirostris – T. hartlaubi – T. hemprichii – T. jacksoni – T. kempi – T. leucomelas – T. monteiri – T. nasutus – T. pallidirostris – T. ruahae – T. rufirostris
Name

Tockus Lesson, 1830: 252
References

Lesson, R.P. 1830–1831. Traité d'ornithologie, ou, Tableau méthodique des ordres, sous-ordres, familles, tribus, genres, sous-genres et races d'oiseaux : ouvrage entièrement neuf, formant le catalogue le plus complet des espèces réunies dans les collections publiques de la France. F. G. Levrault, Paris. Vol. 1: pp. i–xxxii, 1–659. BHL Reference page. [original description: p. 252]
IOC

Vernacular names
English: Tockus

Tockus is a genus of birds in the hornbill family, Bucerotidae, which are native to Africa.
Description

Hornbills in the genus Tockus are small African birds with triangular shaped curved bills. They can be found in tropical and sub-tropical African grasslands, forests and savannahs. They all have long tail feathers which are black on the exterior and white on the interior.
Species

Monteiro's hornbill (Tockus monteiri)
Red-billed hornbill group
Northern red-billed hornbill (Tockus erythrorhynchus)
Damara red-billed hornbill (Tockus damarensis)
Southern red-billed hornbill (Tockus rufirostris)
Tanzanian red-billed hornbill (Tockus ruahae)
Western red-billed hornbill (Tockus kempi)
Southern yellow-billed hornbill (Tockus leucomelas)
Eastern yellow-billed hornbill (Tockus flavirostris)
Von der Decken's hornbill (Tockus deckeni)
Jackson's hornbill (Tockus jacksoni)

References

Gordon Lindsay Maclean - Robert's Birds of South Africa, 6th Edition

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