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Systemodon tapirinus
Taxonomy
Orohippus tapirinus was named by Cope (1875). Its type specimen is USNM 1064, a mandible (right mandible fragment with P3–M3), and it is a 3D body fossil.
It was recombined as Hyracotherium tapirinus by Cope (1877), Hay (1899), Matthew (1899), Troxell (1922), Radinsky (1963); it was recombined as Hyracotherium tapirinum by Wortman (1896), MacFadden (1998); it was recombined as Eohippus tapirinus by Hay (1902), Peterson (1919); it was considered a nomen dubium by Granger (1908); it was recombined as Systemodon tapirinus by Cope (1882), Cope (1884), Froehlich (1999), Froehlich (2002).
It was recombined as Hyracotherium tapirinus by Cope (1877), Hay (1899), Matthew (1899), Troxell (1922), Radinsky (1963); it was recombined as Hyracotherium tapirinum by Wortman (1896), MacFadden (1998); it was recombined as Eohippus tapirinus by Hay (1902), Peterson (1919); it was considered a nomen dubium by Granger (1908); it was recombined as Systemodon tapirinus by Cope (1882), Cope (1884), Froehlich (1999), Froehlich (2002).