©Copyright 2018 GEOSCIENCE RESEARCH INSTITUTE
11060 Campus Street • Loma Linda, California 92350 • 909-558-4548
Dinosaur footprints in the town of Torotoro. Torotoro is located in a valley formed by synclinal folding of sedimentary layers, forming a U-shaped regional structure. In the distance, one of the sides of the syncline can be seen, and the other occupies the bottom part of the photo, where the footprints are exposed
Trail of ankilosaur footprints. This track is right at the entrance of the town of Torotoro.
Sauropod dinosaur footprints on the outskirts of the town of Torotoro. The footprints are very well preserved in sandstone rock.
Three trackways of dinosaur footprints. The middle one was made by a bipedal dinosaur, and those on both sides by quadrupedal dinosaurs (sauropods). The rocky substrate consists of sandstones formed on a beach or coast at low tide. The substrate was originally wet and firm, but deformable. The direction of movement of the dinosaurs was to the left.
Dinosaur trackways, the main one thought to have been left by an ankylosaurid (hammer for scale). Cretaceous El Molino Fm., Torotoro, Bolivia. Well developed fossil trackways imply a special set of conditions, with sediment wet enough for footprints to remain impressed followed by prompt induration and burial.
Walking on mudcracks. A dinosaur left this track in muddy sediment that shrank, forming polygons upon desiccation. Trackway exposed in Cretaceous layers from the Sousa Basin of Brazil, at the Vales Dos Dinossauros geosite.
Tyrrell Museum, Camarasaurus leg
Tyrrell Museum, Ornithomimus edmontonicus in opisthotonic posture
Tyrrell Museum, Stegosaurus
Marginocephalians are a group of herbivorous dinosaurs found in Cretaceous layers and characterized by a bony frill at the back of their skull. This photo shows specimens of 4 different species within this group, on display at the Field Museum of Natural History, Chicago.
Compare the foot of this big land vertebrate with the hand of a human... Pretty massive animal, right? Can you guess the species? Well, a T. rex dinosaur, of course! This specimen welcomes you in the foyer of the Denver Museum of Nature and Science, CO, US.
Dinosaur fossil graveyard, visitor center, Dinosaur National Monument.
Dinosaur trackways, west Denver --- Dinosaur Ridge with trackways in the Dakota sandstone.
Tyrannosaurus rex, Denver Museum of Nature and Science.