The horse family, or equidae, belong to the tribe of Ungulates, or hoofed animals, some points of whose anatomy require to be considered in relation to our own.
"The Old Riddle and the Newest Answer"
John Gerard
Till some vestiges of these be found, or, at least, some positive evidence that arches there actually were, can it be said that the story of the fossil equidae furnishes convincing testimony on behalf of the supposed evolution?
"The Old Riddle and the Newest Answer"
John Gerard
The ulna is complete and much larger than in any of the equidae, while it is more slender than in most of the true Palaeotheria; it is fixedly united, but not ankylosed, with the radius.
"Critiques and Addresses"
Thomas Henry Huxley