Equus (genus) 54 million years ago (Mya). These animals had three toes on the hind feet and four on the front feet with small hooves in place of claws, but also had soft pads.<ref name="doi10.1126/science.1105458"></ref> Equids developed into larger, three-toed animals (e.g. "Mesohippus") during the Oligocene and Miocene. From there, the side toes became progressively smaller through the Pleistocene until the emergence of the single-toed "Equus". The genus "Equus", which includes all extant equines, is believed to have evolved from "Dinohippus", via the intermediate form "Plesippus". One of the oldest species is "Equus simplicidens", described as zebra-like with a donkey-like head shape.
Equus (comics) been captured in the same story. Equus reappeared under Mr. Orr's command in "Countdown" #36 (2007), clashing with Karate Kid and Triplicate Girl. After receiving a beating from Karate Kid, Equus was enraged that Mr. Orr, under Desaad's orders, would let them go. Equus severs the railroad tracks on which Karate Kid and Triplicate Girl's train is traveling, after having phoned the police, telling them that the derailment is a metahuman attack, and that the metahumans themselves are bio-weapons, leading the officers to shoot first and not ask questions. Karate Kid and Una eventually are able to beat Equus, disabling