Sip back and discover the Lower Cretaceous marine reptile fossil Lagerstätte of Boyacá, Ricaurte Alto Province in Colombia—one of the world’s most important and complete records of marine reptiles. Preserved within the Paja Formation, this IUGS-recognised geological heritage site reveals exceptionally preserved ichthyosaurs, plesiosaurs, pliosaurs, marine turtles, and rare dinosaurs from a low-oxygen epicontinental sea that filled a critical gap in global Cretaceous palaeonto