The Horses Hoof. 
Horses are effectively standing on a single toe; and it’s not even their ‘big’ toe! ;)
The distal phalanx (also known as the coffin bone as it is encased by the hoof) is the exact equivalent to your final bone on the toe that is 3rd from the middle.
Picture source: Steve Crotz Shoeing

The Horses Hoof. 

Horses are effectively standing on a single toe; and it’s not even their ‘big’ toe! ;)

The distal phalanx (also known as the coffin bone as it is encased by the hoof) is the exact equivalent to your final bone on the toe that is 3rd from the middle.

Picture source: Steve Crotz Shoeing