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
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Magnordo: Epitheria
Superordo: Afrotheria
Cladus: Paenungulata
Cladus: Tethytheria
Ordo: Proboscidea
Familia: †Deinotheriidae
Subfamilia: †Chilgatheriinae
Genus: †Chilgatherium
Species: † C. harissi
Name
Chilgatherium Sanders, Kappelman & Rasmussen, 2004
Type species: Chilgatherium harrisi Sanders, Kappelman & Rasmussen, 2004, by original designation and by monotypy
References
Primary references
Sanders, W.J., Kappelman, J. & Rasmussen, D.T. 2004. New large-bodied mammals from the late Oligocene site of Chilga, Ethiopia. Acta Palaeontologica Polonica 49(3): 365–392. Online Reference page. [p. 372]
Chilgatherium ('Chilga beast' after the locality in which it was found) is the earliest and most primitive representative of the family Deinotheriidae.[1] It is known from late Oligocene (27- to 28-million-year-old) fossil teeth found in the Ethiopian district of Chilga.
So far, only a few molar teeth have been found, but these are distinct enough that this animal can be identified with confidence. The teeth differ from those of Prodeinotherium, Deinotherium, and the various barytheres in various details, enough to show that this is a distinct type of animal, and has been placed in its own subfamily. Compared to later deinotheres, Chilgatherium was quite small, about 2 m (6.6 ft) tall at the shoulder and weighed about 1.5 t (1.7 short tons).[2] It is not known if it shared the distinctive downward-curving tusks on the lower jaw that the later deinotheres had.
Chilgatherium disappeared prior to the Early Miocene, when it was replaced by Prodeinotherium.
References
Athanassios Athanassiou (November 2004). "On a Deinotherium (Proboscidea) finding in the Neogene of Crete". Carnets de géologie (Notebooks on geology). 5: 1–7. doi:10.4267/2042/311.
Larramendi, A. (2016). "Shoulder height, body mass and shape of proboscideans" (PDF). Acta Palaeontologica Polonica. 61. doi:10.4202/app.00136.2014.
Further reading
Wikispecies has information related to Chilgatherium.
Gugliotta, Guy (2003) Six New Species of Prehistoric Mammals Discovered in Africa Find Proves Elephants Originated on Continent, Scientist Says, The Washington Post, Thursday, December 4, 2003; Page A02
Sanders, W.J., Kappelman, J. & Rasmussen, D. T. (2004). "New large-bodied mammals from the late Oligocene site of Chilga, Ethiopia" (PDF). Acta Palaeontologica Polonica. 49 (3): 365–392. Archived from the original (PDF) on 2005-05-29. Retrieved 2019-06-30.
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