The table shows data on each specimen of the two Hipparion concudense samples: bone section measurements and age at death.

LVF: Los Valles de Fuentidueña; CD: Concud; MC: metacarpal; MT: metatarsal; Asterisks indicate the degree of preservation: (*) the cortical bone is altered but histological features can be observed; (**) the cortical bone is highly altered and histological features are not discernible; LAG: line of arrested growth; EFS: external fundamental system; max NGM: maximum number of growth marks within the EFS; age at death was inferred from the numbers of growth marks; HOS: histological ontogenetic stage; ADP: antero-posterior diameter; TD: transverse diameter; Density Sec. Ost.: density of secondary osteons (number of secondary osteons/mm2).