During the Early Cretaceous, lakes, meandering streams, and flood plains covered the region where the current foothills of Rioja now exist. This book provides a synthesis of that research in English. It offers descriptions of sites, footprints, and trackways, and explains what these prints and tracks can tell us about the animals who made them.

F¿x P¿z-Lorente teaches geology at Universidad de La Rioja, Spain.