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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
Ordo: Passeriformes
Subordo: Passeri
Infraordo: Passerida
Superfamilia: Muscicapoidea

Familia: Turdidae
Genus: Zoothera
Species: Zoothera heinrichi

Zoothera heinrichi (Stresemann, 1931)

Geomalia heinrichi (protonym)


Ornithologische Monatsberichte 39: 11.

Vernacular names
Deutsch: Celebesdrossel
English: Geomalia
Esperanto: Sulavesa montoturdo
español: Zorzal terrestre de Célebes
suomi: Celebesinvuorirastas
français: Grive des Célèbes
magyar: Celebeszi földirigó
Bahasa Indonesia: Anis geomalia
Nederlands: Geomalia
svenska: Geomalia

The geomalia or Sulawesi mountain thrush (Zoothera heinrichi) is a rare member of the thrush family endemic to Sulawesi in Indonesia.[2][3] It is sometimes classified as Geomalia heinrichi, in which case it is monotypic in the genus Geomalia (which is the source of its primary common name).

The coloration of the bird is primarily dark brown with chestnut color on the breast. The long legs, long tail and short wings struck the discoverer as reminiscent of laughingthrushes, and the name Geomalia is itself a reference to another, superficially similar Sulawesi endemic, the malia, but the two species are not related. The specific name commemorates its discoverer, the German explorer Gerd Heinrich.

There has been some debate over the taxonomic affinities of the geomalia. While it has some features typical of thrushes (such as an upright posture, juveniles with spotted underparts, and thrush-like terrestrial foraging behavior), several others (such as its long, rounded tail; short wings; and apparent lack of a song) have led authors to question whether its placement in the thrush family is appropriate.[4][5] A genetic study published in 2013 confirmed its placement in the family Turdidae, specifically as an aberrant member of the genus Zoothera.[2]

Due to its isolation and the difficulty of getting to its habitat, the geomalia is little-studied. The species may be threatened by uncontrolled logging and other activities that cause degradation of the Sulawesi highlands, including the grounds of legally protected lands such as Lore Lindu National Park. It is listed as Near Threatened on the IUCN Red List.

BirdLife International (2012). "Geomalia heinrichi". IUCN Red List of Threatened Species. 2012. Retrieved 26 November 2013.
Olsson U.,Alström P. (2013). Molecular evidence suggests that the enigmatic Sulawesi endemic species belongs in the genus Zoothera (Turdidae, Aves) Archived 2014-02-21 at the Wayback Machine. Chinese Birds 4 (2): 155–160.
Gill F. and Donsker D. (eds), Family Turdidae in «IOC World Bird Names (ver 4.1)», International Ornithologists’ Union, 2014.
Collar, Nigel (2013). del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D. A.; de Juana, E. (eds.). "Thrushes (Turdidae)". Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. Retrieved 2017-04-14.
Roberson, Don (2012-03-03). "Geomalia". Bird Families of the World. Archived from the original on 2015-10-06. Retrieved 2017-04-14.

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