This tarsal, the calcaneum, is often found as a fossil because the bone is dense and because in life there is little meat on the bone to attract carnivores. Calcanea (plural) are diagnostic -- that is, they can be identified to family or genus. In this image, twoTapirus sp. calcanea are compared for size.
(This image is best viewed by clicking on the "options" button
on the upper right of this page => "view all sizes" => "large".)