Andrewsarchus

Andrewsarchus; Temporal range:
	Holotype skull of Andrewsarchus mongoliensis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Clade:	Cetancodontamorpha
Family:	†Andrewsarchidae; Szalay & Gould, 1966
Genus:	†Andrewsarchus; Osborn, 1924
Type species
	†Andrewsarchus mongoliensis; Osborn, 1924
Other species
	†Andrewsarchus crassum ; Ding, Zheng, Zhang, & Tong, 1977;
Synonyms
	Genus synonymy Paratriisodon ; Chow, 1959; ; Species synonymy A. mongoliensis Paratriisodon henanensis ; Chow, 1959; Paratriisodon gigas ; Chow, Li, & Chang, 1973; ; ;

Andrewsarchus (/ˌændruːˈsɑːrkəs/) is an extinct genus of ungulate that lived during the Middle Eocene in China. It contains two species, A. mongoliensis and A. crassum. It was formerly placed in the families Mesonychidae or Arctocyonidae, but is now the sole member of a distinct family, Andrewsarchidae. Only known from a largely complete skull as well as isolated teeth, it is notable for being estimated as the largest terrestrial, carnivorous mammal, but that status has been disputed.

^ Osborn, H.F. (1924). "Andrewsarchus, giant mesonychid of Mongolia". American Museum Novitates (146): 1–5. hdl:2246/3226.
^ Szalay, F.S.; Gould, S.J. (1966). "Asiatic Mesonychidae (Mammalia, Condylartha)". Bulletin of the American Museum of Natural History. 132 (2): 127–174. hdl:2246/1112.
^ Ding, S.; Zheng, J.; Zhang, Y.; Tong, Y. (1977). "The age and characteristic of the Liuniu and the Dongjun faunas, Bose Basin of Guangxi" (PDF). Vertebrata PalAsiatica. 15 (1): 35–45.
^ Chow, M.M. (1959). "A new arctocyonid from the Upper Eocene of Lushih, Honan" (PDF). Vertebrata PalAsiatica. 3 (3): 133–138.
^ Chow, M.M.; Li, C.; Chang, Y. (1973). "Late Eocene mammalian faunas of Honan and Shansi with notes on some vertebrate fossils collected therefrom" (PDF). Vertebrata PalAsiatica. 11 (2): 165–181.

[Osborn_1924-1] Osborn, H.F. (1924). "Andrewsarchus, giant mesonychid of Mongolia". American Museum Novitates (146): 1–5. hdl:2246/3226.

[Szalay_&_Gould_1966-2] Szalay, F.S.; Gould, S.J. (1966). "Asiatic Mesonychidae (Mammalia, Condylartha)". Bulletin of the American Museum of Natural History. 132 (2): 127–174. hdl:2246/1112.

[Ding_et_al._1977-3] Ding, S.; Zheng, J.; Zhang, Y.; Tong, Y. (1977). "The age and characteristic of the Liuniu and the Dongjun faunas, Bose Basin of Guangxi" (PDF). Vertebrata PalAsiatica. 15 (1): 35–45.

[Chow_1959-4] Chow, M.M. (1959). "A new arctocyonid from the Upper Eocene of Lushih, Honan" (PDF). Vertebrata PalAsiatica. 3 (3): 133–138.

[Chow_et_al._1973-5] Chow, M.M.; Li, C.; Chang, Y. (1973). "Late Eocene mammalian faunas of Honan and Shansi with notes on some vertebrate fossils collected therefrom" (PDF). Vertebrata PalAsiatica. 11 (2): 165–181.

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Andrewsarchus Temporal range:


Holotype skull of Andrewsarchus mongoliensis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Clade:	Cetancodontamorpha
Family:	†Andrewsarchidae Szalay & Gould, 1966^[2]
Genus:	†Andrewsarchus Osborn, 1924^[1]
Type species
†Andrewsarchus mongoliensis Osborn, 1924
Other species
†Andrewsarchus crassum Ding, Zheng, Zhang, & Tong, 1977^[3]
Synonyms
Genus synonymy Paratriisodon Chow, 1959^[4] Species synonymy A. mongoliensis Paratriisodon henanensis Chow, 1959 Paratriisodon gigas Chow, Li, & Chang, 1973^[5]