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) Equus (comics) Equus is a fictional comic book supervillain, a cyborg mercenary in the DC Comics universe who serves as an opponent of Superman. Created by writer Brian Azzarello and artist Jim Lee, he first appeared in "Superman" #206 (August 2004), which was published in June 2004 as part of the "" storyline. Equus first appears in the third issue of the year-long "" storyline that ran in "Superman" in 2004 and early 2005. A prototype for the OMAC Project, he comes into conflict with Superman when the superhero discovers that "The Vanishing", an event in which one million people