New Geochronologic And Stratigraphic Evidence Confirms The Paleocene Age Of the Dinosaur-Bearing Ojo Alamo Sandstone And Animas Formation In The San Juan Basin, New Mexico and Colorado: …An assemblage of 34 skeletal elements from a single hadrosaur, found in the Ojo Alamo Sandstone in the southern San Juan Basin, provided conclusive evidence that this assemblage … Continue reading Post-Cretaceous Dinosaurs