Results 51 to 60 of about 939 (164)

A survey of dinosaur diversity by clade, age, place of discovery and year of description [PDF]

, 2014
Dinosaur diversity is analyzed in terms of the number of valid genera within each major clade, Mesozoic age, place of discovery and year of description. Aves (Archaeopteryx + Neornithes) is excluded. Nomina nuda and nomina dubia are not counted.
Taylor, Michael
core   +2 more sources

On Galileo’s Tallest Column

Mathematical Problems in Engineering, Volume 2015, Issue 1, 2015., 2015
The height at which an unloaded column will fail under its own weight was calculated for first time by Galileo for cylindrical columns. Galileo questioned himself if there exists a shape function for the cross section of the column with which it can attain a greater height than the cylindrical column.
Mariano Vázquez Espí, Jaime Cervera Bravo, Carlos Olmedo Rojas, Reza Jazar   +3 more
wiley   +1 more source

Testing the persistence of Carcharodontosauridae (Theropoda) in the Upper Cretaceous of Patagonia based on dental evidence [PDF]

, 2021
The deposits corresponding to the Upper Cretaceous Neuquén and San Jorge Gulf basins from northern and central Patagonia have provided two of the most complete sequences of terrestrial vertebrate faunas of all Gondwanan landmasses.
Canudo, J. I., Casal, G. A., Da Silva Correa, Samuel Aparecido, Dos Santos, D., Juárez Valieri, R. D., Martinelli, Agustín Guillermo, Meso, Jorge Gustavo, Poblete, F., Porfiri, Juan Domingo   +8 more
core   +1 more source

Reanalysis of "Raptorex kriegsteini": a juvenile tyrannosaurid dinosaur from Mongolia.

PLoS ONE, 2011
The carnivorous Tyrannosauridae are among the most iconic dinosaurs: typified by large body size, tiny forelimbs, and massive robust skulls with laterally thickened teeth.
Denver W Fowler, Holly N Woodward, Elizabeth A Freedman, Peter L Larson, John R Horner   +4 more
doaj   +1 more source

A tyrannosaurid pedal ungual from the Williams Fork Formation (Campanian) of Colorado and its implications for the biogeography of Laramidian dinosaurs

Acta geologica Polonica, 2023
: Yun, C.G. 2023. A tyrannosaurid pedal ungual from the Williams Fork Formation (Campanian) of Colorado and its implications for the biogeography of Laramidian dinosaurs. Acta Geologica Polonica , 73 (1), 63–72. Warszawa.
Chan-gyu Yun
semanticscholar   +1 more source

Theropod dinosaur diversity of the lower English Wealden: analysis of a tooth‐based fauna from the Wadhurst Clay Formation (Lower Cretaceous: Valanginian) via phylogenetic, discriminant and machine learning methods

Papers in Palaeontology, Volume 10, Issue 6, November/December 2024.
Abstract The Lower Cretaceous Wealden Supergroup of southern England yields a diverse assemblage of theropod dinosaurs, its taxa being represented by fragments in addition to some of the most informative associated skeletons of the European Mesozoic. Spinosaurids, neovenatorid allosauroids, tyrannosauroids and dromaeosaurids are among reported Wealden ...
Chris T. Barker, Lucy Handford, Darren Naish, Simon Wills, Christophe Hendrickx, Phil Hadland, Dave Brockhurst, Neil J. Gostling   +7 more
wiley   +1 more source

A standard protocol for documenting modern and fossil ichnological data [PDF]

, 2018
© The Palaeontological Association. The collection and dissemination of vertebrate ichnological data is struggling to keep up with techniques that are becoming commonplace in the wider palaeontological field.
Abrahams, Adams, Allen, Avanzini, Avanzini, Bates, Bates, Bates, Bates, Belvedere, Belvedere, Bennett, Bennett, Breithaupt, Castanera, Citton, Davies, Díaz-Martínez, Ellis, Falkingham, Falkingham, Falkingham, Falkingham, Falkingham, Falkingham, Falkingham, Falkingham, Farlow, Fiorillo, Gatesy, Gatesy, Graversen, Haubold, Hitchcock, Klein, Lallensack, Lallensack, Leonardi, Lockley, Lockley, Lomax, Maceo, Mallison, Manning, Manning, Marsicano, Marty, Marty, Marty, Matthews, Matthews, McCrea, Milàn, Milàn, Milàn, Milàn, Milàn, Milàn, Minter, Padian, Padian, Petti, Razzolini, Razzolini, Salisbury, Thulborn, Thulborn, Xing, Xing, Xing   +69 more
core   +4 more sources

Phylogeny of Allosauroidea (Dinosauria:Theropoda): Comparative analysis and resolution [PDF]

, 2008
Allosauroidea, a clade of large-bodied theropod dinosaurs that ranged from the Middle Jurassic until the Late Cretaceous, has been the subject of extensive phylogenetic study.
Brusatte, S.L., Sereno, P.C.
core   +1 more source

Combined Ca, Sr isotope and trace element analyses of Late Cretaceous dinosaur teeth: assessing diet versus diagenesis [PDF]

peer reviewedThe Sr and Ca isotope composition, along with trace element content in fossil teeth, provides valuable insights into biogenic and diagenetic processes.
Cipriani, Anna, Ferretti, Annalisa, Fowler, Denver, Fowler, Elizabeth Freedman, Giustina, Francesco Della, Lugli, Federico, Malferrari, Daniele, Michailow, Mateusz M., Tütken, Thomas, Weber, Michael   +9 more
core   +2 more sources

Tyrannosauridae

, 2003
Published as part of Christopher A. Brochu, 2003, Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull, pp. 1-138 in Journal of Vertebrate Paleontology 22 on pages 2-3, DOI: 10.2307/3889334, http://zenodo.org/record ...
openaire   +2 more sources