Mammalia - Artiodactyla - Helohyidae

Alternative combination: Achaenodon vagus

Full reference: O. C. Marsh. 1876. Notice of new Tertiary mammals. V. American Journal of Science 12(71):401-404

Belongs to Parahyus according to S. E. Foss 2007

See also Gazin 1955, Hay 1902, Marsh 1876, Osborn 1883 and Peterson 1919

Sister taxa: none

Type specimen: YPM 10972, a mandible (Right ramus of mandible with P3-M3)

Ecology: ground dwelling grazer-browser

Distribution: found only at Junction (TMM 42287) (Eocene of Texas)

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Specimen images are retrieved through the ePANDDA API.