Lake Zambrana, 37 million years ago (IMAGE) University of the Basque Country Caption Detail of the margin of Lake Zambrana (Álava) from 37 million years ago. On the left the new species of paleoterid 'Leptolophuscostiai' and in the center and on the right another equoid perissodactyl, 'Pachynolophus zambranen Credit Paleoillustration: Ulises Martínez Cabrera. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.