AN ARTICULATED SPECIMEN OF THE BASAL TITANOSAURIAN (DINOSAURIA: SAUROPODA) EPACHTHOSAURUS SCIUTTOI FROM THE EARLY LATE CRETACEOUS BAJO BARREAL FORMATION OF CHUBUT PROVINCE, ARGENTINA
- R. Martínez, O. Gimenez, Jorge Rodríguez, Marcelo Luna, M. Lamanna
- Biology, Environmental Science
- 25 March 2004
An articulated specimen of the titanosaurian sauropod Epachthosaurus sciuttoi from the early Late Cretaceous Bajo Barreal Formation of Chubut Province, central Patagonia, Argentina is described.
A Giant Sauropod Dinosaur from an Upper Cretaceous Mangrove Deposit in Egypt
We describe a giant titanosaurid sauropod dinosaur discovered in coastal deposits in the Upper Cretaceous Bahariya Formation of Egypt, a unit that has produced threeTyrannosaurus-sized theropods and…
A New Large-Bodied Oviraptorosaurian Theropod Dinosaur from the Latest Cretaceous of Western North America
Phylogenetic analysis indicates that Anzu is most closely related to Caenagnathus collinsi, a taxon that is definitively known only from a mandible from the Campanian Dinosaur Park Formation of Alberta, and the problematic oviraptorosaurs Microvenator and Gigantoraptor are recovered as basal caenagnaths, as has previously been suggested.
A gigantic new dinosaur from Argentina and the evolution of the sauropod hind foot
- B. G. González Riga, M. Lamanna, Leonardo D. Ortiz David, J. Calvo, J. P. Coria
- Geography, Environmental ScienceScientific Reports
- 18 January 2016
The complete pes of the new taxon exhibits a strikingly compact, homogeneous metatarsus—seemingly adapted for bearing extraordinary weight—and truncated unguals, morphologies that are otherwise unknown in Sauropoda.
A DEFINITIVE ABELISAURID THEROPOD DINOSAUR FROM THE EARLY LATE CRETACEOUS OF PATAGONIA
Abstract A nearly complete, well-preserved maxilla of an abelisaurid theropod from the early Late Cretaceous (middle Cenomanian-Turonian) Lower Member of the Bajo Barreal Formation of Chubut,…
A Gigantic, Exceptionally Complete Titanosaurian Sauropod Dinosaur from Southern Patagonia, Argentina
Dreadnoughtus is the most complete giant titanosaur yet discovered, and provides new insight into the morphology and evolutionary history of these colossal animals.
Description of a Nearly Complete Juvenile Skull of Diplodocus (Sauropoda: Diplodocoidea) from the Late Jurassic of North America
A juvenile skull of Diplodocus is described that does not share the unusually blunted snout and anteriorly sequestered teeth seen in adult specimens, suggesting that adults and juveniles may have differed greatly in their feeding behavior, an ontogenetic distinction that may be unique among sauropodomorphs.
Melanosomes or Microbes: Testing an Alternative Hypothesis for the Origin of Microbodies in Fossil Feathers
‘Mouldic impressions’ were observed in association with both the feather and sediment grains, supporting a microbial origin and a criteria for distinguishing between these two microbodies is proposed.
A new, three-dimensionally preserved enantiornithine bird (Aves: Ornithothoraces) from Gansu Province, north-western China
The exceptional, three-dimensional preservation of these specimens (compared to the crushed, nearly two-dimensional condition of most other Early Cretaceous avian fossils) reveals new information regarding enantiornithine anatomy, evolution, and diversity.
A Basal Lithostrotian Titanosaur (Dinosauria: Sauropoda) with a Complete Skull: Implications for the Evolution and Paleobiology of Titanosauria
A number of distinctive morphologies—such as the ossified cervical tendon, extremely pneumatized cervical vertebrae, and a habitually downward-facing snout—that have rarely, if ever, been documented in other titanosaurs are documented, thus broadening the understanding of the anatomical diversity of this remarkable sauropod clade.