Usage examples (4)

• This mesohippus, c. 40mya apparently looks like a modern horse to Bob.
• But what gained greatest attention, especially from ranchers in the west, was his discovery in subsequent years of handsome skeletons of four of the progenitors of the horse:...
• A group of new scholars is pushing the line that the ancestors of our horse developed in America only as far as mesohippus, which then emigrated to Asia, where it...
• And then, about thirty million years ago, when the land that was to form the twin pillars was being laid down, mesohippus developed, twenty-four inches high at the...