Dinosaur Bones - 2001 - Bob Barner - Chronicle Books, 2001 ...

Preliminary report on borings in Jurassic dinosaur bones: Evidence for invertebrate-vertebrate interactions, circular-to elliptical-shaped borings on dinosaur ...
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Dinosaur Bones - 2001 - Bob Barner - Chronicle Books, 2001 - 9780811831581 Preliminary report on borings in Jurassic dinosaur bones: Evidence for invertebrate-vertebrate interactions, circular-to elliptical-shaped borings on dinosaur bones from quarries in Utah and Wyoming indicate scavenging and reproductive behavior of partial puparia of dermestid beetle larvae (Coleoptera: Dermestidae) on subaerially exposed carcasses prior to burial. These. Blood vessels and red blood cells preserved in dinosaur bones, dinosaur bones, 80 million years old, were studied in the scanning electron microscope, and subjected to X-ray microanalysis. Samples for the investigations were prepared according to specially elaborated, and simultaneously described methods. Analysed were. Proteins in dinosaur bones, dEPARTMENT OF PHYSICS, UNIVERSITY OF ARIZONA, TUCSON Communicated March 7, 1968 The presence of proteins in individual fossil specimens permitsa direct ap- proach to questions of chemical evolution. Most analyses of these proteins have been made on invertebrate. Orientation of dinosaur bones in riverine environments: Insights into sedimentary dynamics and taphonomy, statistical analyses of the orientation of elongate objects can provide valuable information rela-tive to flow conditions of ancient deposits even when the deposits have undergone burial, compaction, lithifi-cation, and diagenetic changes. These data can be particularly. Predatory behaviour of carnivorous dinosaurs: ecological interpretations based on tooth marked dinosaur bones and wear patterns of theropod teeth, predation marks on bones are a source on information on the feeding behaviour of the carnivores involved. Although predator damaged bone is common in the fossil record, published reports of such marks on dinosaur bones are rare. Patterns of bone modification. First dinosaur bones from Western Australia, a proximal end of a reptilian right humerus from the Late Maastrichtian Miria Formation, Carnarvon Basin, is identified as possibly belonging to a theropod dinosaur, based on the shape of the deltopectoral crest and the slender shaft. A small caudal vertebra from. Feeding behaviour of carnivorous dinosaurs as determined by tooth marks on dinosaur bones, ecological and behavioral aspects of dinosaur research are receiving increasing attention. Toothâ marked bones have been studied for many years, and have provided important information on the feeding behaviour of mammalian carnivores. Similarly, theropod tooth. Preliminary data on the diagenesis of Cretaceous dinosaur bones from the Bakony Mts, Hungary, mineralogical and geochemical study of Late Cretaceous Dinosaur bones (femur and rib fragments) from the alluvial Csehbánya Formation (Iharkút, Hungary) were performed by the combination of several analytical techniques (polarised light microscopy, XPD, SEM. Application of forensic science techniques to trace fossils on dinosaur bones from a quarry in the Upper Jurassic Morrison Formation, northeastern Wyoming, trace fossils on sauropod skeletons from a quarry in fluvial deposits of the Morrison Formation, Wyoming, are used to reconstruct the taphonomic history of the dinosaur bone accumulation. Shallow pits; rosettes; hemispherical pits; thin, curvilinear, branching grooves. Testability, our inference relies on the existence of a causal chain-fromX to Y to Z. X is the dinosaur's diet, Y is the state of the dinosaur's bones while it was alive, and Z is the present state of the fossil. The relation- ship of X to Y to Z is probabilistic. Synchrotron XRF analyses of element distribution in fossilized sauropod dinosaur bones, sauropod dinosaurs were typically one magnitude larger than any other living or extinct terrestrial animal. This sheer size of the sauropod leads to scale effects in their biology and physiology that still are inadequately understood. The only remnants of the sauropods. A multi-technique approach by XRD, XRF, FT-IR to characterize the diagenesis of dinosaur bones from Spain, a combined investigation by X-ray fluorescence (XRF), Fourier Transform Infrared spectroscopy (FT-IR), Raman spectroscopy and powder X-ray Diffraction (XRD), supplemented with the Rietveld analysis, was conducted on sixty Spanish dinosaur bone. On the meaning of words and dinosaur bones: Lexical knowledge without a lexicon, although for many years a sharp distinction has been made in language research between rules and words with primary interest on rules this distinction is now blurred in many theories. If anything, the focus of attention has shifted in recent years in favor of words. Direct U-Pb dating of Cretaceous and Paleocene dinosaur bones, San Juan Basin, New Mexico, vertebrate fossils have been important for relative dating of terrestrial rocks for decades, but direct dating of these fossils has heretofore been unsuccessful. In this study we employ recent advances in laser ablation in situ U-Pb dating techniques to directly date. Isolated dinosaur bones from the Middle Cretaceous of the Tafilalt, Morocco, les grès rouges infracénomaniens du Maroc méridional, supposés d'âge Albien, ont fourni l'un des ensembles de dinosaures les plus diversifiés d'Afrique, avec en particulier une espèce de Spinosaurus à cou relativement long, et des os abondants mais isolés d'un. Rolling bones-Taphonomy of Jurassic dinosaur bones inferred from diagenetic microcracks and mineral infillings, dinosaur bones from the Upper Jurassic Shishugou Formation near Qitai in the Junggar Basin, NW China, show black manganese oxide and light quartz infillings in the bone pore space such as Haversian canals and diagenetic cracks. The manganese oxides. Trace fossils on dinosaur bones from Upper Cretaceous eolian deposits in Mongolia: taphonomic interpretation of paleoecosystems in ancient desert environments, the formation processes of trace fossils-including shallow to deep pits, notches, borings (tunnels), and channels, particularly at the limb joints-observed on the surfaces of Velociraptor, Protoceratops, ankylosaurid, and Bagaceratops skeletons from Upper. Chemistry, microstructure, petrology, and diagenetic model of Jurassic dinosaur bones, Dinosaur National Monument, Utah, the fossil-bone mineral in dinosaurs from the Morrison Formation is well-crystallized, stoichiometric francolite. The closely packed, subparallel francolite crystals have equidimensional cross sections mostly 10-40 nm wide. In contrast, crystallites in unaltered. Dinosaur bones: fossils or pseudomorphs? The pitfalls of physiology reconstruction from apatitic fossils, a prerequisite to any attempt to reconstruct thermophysiology of ancient animals through analysis of stable isotopes of oxygen is the assumption that apatitic fossils are isotopically unaltered parts of their original skeletons. We suggest that sufficient evidence is available. Non-marine borings in dinosaur bones from the Upper Cretaceous Two Medicine Formation, northwestern Montana, evidence of physical and chemical modification of bone is widespread in the fossil record, with fossil bone showing an array ofpost-mortem alterations including scratch marks, tooth marks, abrasion, weathering, polish, and breakage (Behrensmeyer, 1975; Haynes, I980a. by AR Jacobsen