Results 71 to 80 of about 72,611 (345)

Stable isotope (δ18O and δ13C) sclerochronology of Callovian (Middle Jurassic) bivalves (Gryphaea (Bilobissa) dilobotes) and belemnites (Cylindroteuthis puzosiana) from the Peterborough Member of the Oxford Clay Formation (Cambridgeshire, England): Evidence of palaeoclimate, water depth and belemnite behaviour [PDF]

, 2014
Incremental δ18O and δ13C signals were obtained from three well-preserved specimens of Cylindroteuthis puzosiana and from three well-preserved specimens of Gryphaea (Bilobissa) dilobotes from the Peterborough Member of the Oxford Clay Formation ...
A.L.A. Johnson, Alberti, Anderson, Anderson, Arkhipkin, Arkhipkin, Arthur, B.R. Schöne, Barbin, Barbin, Belin, Bodin, Bradshaw, Brigaud, C. Mettam, Dera, Dickson, Doyle, Doyle, Duff, Dunca, Dutton, E.V. Nunn, Frakes, Frakes, Heilmayer, Hewitt, Hudson, Hudson, Hudson, Hudson, Johnson, Jones, Kenig, Kenig, Lartaud, Li, Li, Lécuyer, Macquaker, Martill, McArthur, Morgans, Morgans, Mutterlose, Mutterlose, NOAA, Norry, Nunn, Nunn, O'Neill, Page, Pierre, Poulsen, Price, Price, Price, Price, Price, Price, Price, Price, Price, Rexfort, Rosales, Rosales, Scheurle, Schöne, Schöne, Sellwood, Steuber, Thiery, Tomašovўch, Voigt, Westermann, Wierzbowski, Wierzbowski, Wierzbowski, Wierzbowski, Wilby, Ziegler, Žák   +81 more
core   +3 more sources

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates

The Anatomical Record, EarlyView.
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar, Cristián Gutiérrez‐Ibáñez, Hady George, Thomas R. Holtz Jr., Darren Naish, Grant R. Hurlburt   +5 more
wiley   +1 more source

The Jurassic/Cretaceous boundary and high resolution biostratigraphy of the pelagic sequences of the kurovice section (Outer Western Carpathians, the northern Tethyan margin) [PDF]

, 2019
Microfacies and high resolution studies at the Kurovice quarry (Czech Republic, Outer Western Carpathians) on calpionellids, calcareous and non-calcareous dinoflagellate cysts, sporomorphs and calcareous nannofossils, aligned with paleomagnetism, allow ...
Elbra, Tiiu, Reháková, Daniela, Schnabl, Petr, Skupien, Petr, Svobodová, Andrea, Svobodová, Marcela, Švábenická, Lilian   +6 more
core   +1 more source

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato, Luke E. Nelson, Joshua A. Doyon, Donald B. Brinkman, Alison M. Murray   +4 more
wiley   +1 more source

Detrital zircon SHRIMP U-Pb age study of the Cordillera Darwin Metamorphic Complex of Tierra del Fuego : sedimentary sources and implications for the evolution of the Pacific margin of Gondwana [PDF]

, 2010
The Cordillera Darwin Metamorphic Complex in the southernmost Andes includes a basement of probable Palaeozoic age, a mid-Jurassic and younger volcano-sedimentary cover, and a suite of Jurassic granites, all of which were jointly metamorphosed during the
Calderon, M., Fanning, C.M., Herve, F., Klepeis, K., Mpodozis, C., Pankhurst, R.J., Thomson, S.N.   +6 more
core   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

WARM TO COLD WATER CARBONATE FORMATION DURING THE ORDOVICIAN AND THE JURASSIC: EXAMPLES FROM IRAN, AUSTRALIA, AND ENGLAND [PDF]

Journal of Sciences, Islamic Republic of Iran, 2003
Isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the Ordovician and the Jurassic.
doaj  

The effects of the spreading of the Central Atlantic during the Middle Jurassic on dinosaur faunas [PDF]

, 2012
The spreading of the Central Atlantic is a complex series of events that include a ridge jump to the east and a ridge jump to the west at c. 170Ma and c. 162Ma respectively.
Clark, N.D.L.
core  

Stratigraphy, facies and geodynamic settings of Jurassic formations in the Bükk Mountains, North Hungary: its relations with the other areas of the Neotethyan realm. [PDF]

, 2013
Jurassic mélange complexes related to the subduction of the Neotethys Ocean occur in the Bükk Mountains, North Hungary. This paper characterizes the sedimentary sequence of basin and slope facies that occur in the southwestern part of the Bükk ...
Allemann, Antonova, Antonova, Aubrecht, Aurouze, Balla, Balogh, Balogh, Banner, Bassoullet, Bassoullet, Baumgartner, Beccaro, Beccaro, Bourrouilh, Brun, Bucković, Bérczi-Makk, Bérczi-Makk, Chiocchini, Crescenti, Crescenti, Csontos, Csontos, Csontos, Danitch, Dimitrijević, Dimitrijević, Dragičević, Dufaure, Faryad, Ferrari, Filipović, Fodor, Franke, Goričan, Goričan, Gutnic, Gušić, Haas, Haas, Haas, Halamić, Halamić, Heinz, Hips, JÁNOS HAAS, Karamata, Karamata, Kassimova, Kiss, Kovács, Kozur, Kozur, Lucas, Matsuoka, Missoni, Mizutani, Mock, Mohler, Oberhauser, Oberhauser, Ožvoldova, Pamić, Pazdrowa, Pelikán, Pelikán, Pfender, Protić, PÁL PELIKÁN, PÉTER OZSVÁRT, Radoičič, Radoičič, Raffi, Ruggieri, Rüst, Sashida, Schlumberger, Schréter, Septfontaine, Septfontaine, Septfontaine, Septfontaine, Sotak, Spray, Stampfli, Suzuki, SÁNDOR JÓZSA, Terquem, Tišljar, Velić, Velledits, Wakita, Wernli, Wernli, Weynschenk, Widz, Yao, ÁGNES GÖRÖG, Árkai   +99 more
core   +1 more source

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

The Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom, Paul Gignac, Daniel E. Barta, Ryan N. Felice, Eric Snively   +4 more
wiley   +1 more source