Salvador Arana Calderon, Quarterly Journal of the Geological Society of London (1877)
“ We now know that the principal characteristics of the singular quaternary fauna of the South of Europe are well represented in the soil of Spain by the presence of cave-bears and hyænas, of the urus, the horse, and the antelopes; and we have no doubt that other species, which we are surprised to miss, will be, sooner or later, discovered to have been inhabitants of this peninsula. Discoveries of bones which have been made justify us in affirming the existence of man during the Quaternary period. ”
