Paleontologists have identified two new species of palaeotheriid mammals from fossils found at the Eocene site of Zambrana in Alava, Spain. Palaeotheriid mammal Leptolophus cuestai (left) and equoid perissodactyl Pachynolophus zambranen (center and right). Image credit: Ulises Martínez Cabrera. The two new species, named Leptolophus cuestai and Leptolophus franzeni, lived 37 million years ago in what is now Spain. They belong to Palaeotheriidae (pseudo-horses),...
