Results 81 to 90 of about 71,903 (304)

Folded Basinal Compartments of the Southern Mongolian Borderland: A Structural Archive of the Final Consolidation of the Central Asian Orogenic Belt

Geosciences, 2017
The Central Asian Orogenic Belt (CAOB) records multiple Phanerozoic tectonic events involving consolidation of disparate terranes and cratonic blocks and subsequent reactivation of Eurasia’s continental interior.
Dickson Cunningham
doaj   +1 more source

Injuries in deep time: interpreting competitive behaviours in extinct reptiles via palaeopathology

Biological Reviews, EarlyView.
ABSTRACT For over a century, palaeopathology has been used as a tool for understanding evolution, disease in past communities and populations, and to interpret behaviour of extinct taxa. Physical traumas in particular have frequently been the justification for interpretations about aggressive and even competitive behaviours in extinct taxa.
Maximilian Scott, Julia A. Gamble, Caleb Marshall Brown, Kirstin S. Brink   +3 more
wiley   +1 more source

Fault Slip and Exhumation History of the Willard Thrust Sheet, Sevier Fold‐Thrust Belt, Utah: Relations to Wedge Propagation, Hinterland Uplift, and Foreland Basin Sedimentation [PDF]

, 2019
Zircon (U‐Th)/He (ZHe) and zircon fission track thermochronometric data for 47 samples spanning the areally extensive Willard thrust sheet within the western part of the Sevier fold‐thrust belt record enhanced cooling and exhumation during major thrust ...
Barber, D. E., Eleogram, Bryan, Kelley, Shari, Stockli, Daniel F., Wells, Michael L., Yonkee, W. A.   +5 more
core   +2 more sources

Early evolutionary history of the seed

Biological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

Diversity Patterns of Late Jurassic Chondrichthyans: New Insights from a Historically Collected Hybodontiform Tooth Assemblage from Poland [PDF]

, 2022
Sebastian Stumpf, Stefan Meng, Jürgen Kriwet   +2 more
openalex   +1 more source

A Late Jurassic deep-bodied actinopterygian from Antarctica

Acta Palaeontologica Polonica
Mesozoic deep-bodied actinopterygians are of interest given, among others, the various modes of feeding exhibited by these fishes. Regrettably, most of their fossil record is restricted to a limited number of localities in Europe. During the Late Jurassic fragmentation of Pangaea, the exchange of fauna between the European Tethys and the paleo-Pacific (
Gouiric Cavalli, Soledad, Iglesias, Ari, Cariglino, Barbara, Reguero, Marcelo Alfredo   +3 more
openaire   +3 more sources

New ophthalmosaurid ichthyosaurs from the European lower cretaceous demonstrate extensive ichthyosaur survival across the Jurassic–Cretaceous boundary [PDF]

, 2012
Background Ichthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one ...
A Sirotti, AM Kirton, AS Romer, B Choo, BP Kear, Brock Fenton, C Kolb, C McGowan, C McGowan, C McGowan, C McGowan, C McGowan, C McGowan, CW Andrews, CW Andrews, CW Gilmore, CW Gilmore, Darren Naish, DV Efimov, E Seibertz, EE Maxwell, EE Maxwell, EE Maxwell, EE Maxwell, EE Maxwell, F Broili, F Broili, F Lethiers, Fritz J. Krüger, G Baur, HG Seeley, JA Massare, Jeff Liston, Jessica Tainsh, Judith Pardo Pérez, JW Neale, JW Neale, K Nixon, M Fernández, M Fernández, M Fernández, M Foote, M Wade, M Wade, M Zammit, MA Woods, Michael W. Maisch, MS Arkhangelsky, MS Arkhangelsky, MS Arkhangelsky, MT Young, MT Young, MW Maisch, M–C Buchy, N Bardet, N Bardet, N Bardet, N Bardet, N Bardet, N Bardet, N Bardet, NC Arens, P Goloboff, PC Ensom, PF Rawson, PM Barrett, PM Hopson, PM Sander, PM Thorne, PS Druckenmiller, R Araújo, R Forrest, R Johnson, R Motani, R Motani, Ralf Kosma, RB Benson, RJ Butler, RM Appleby, Robert M. Appleby, RT Bakker, S Lindström, SE Peters, T Danelian, T Lingham-Soliar, Ulrich Joger, V Fischer, V Fischer, V Fischer, Valentin Fischer, VM Efimov, W Kiprijanoff   +91 more
core   +6 more sources

Optimal mud pressure design using nonlinear failure criteria for wellbores in shaley sedimentary reservoir

Deep Underground Science and Engineering, EarlyView.
The present study uses the Modified Mohr‐Coulomb true‐triaxial failure criterion (MMC_TT), which predicts the strength of rock better than the MGC criterion in laboratory true‐triaxial tests to overcome the limitations. Moreover, based on the data from previously published five vertical wells in the Krishna‐Godavari basin (K‐G basin), an empirical ...
Ravindra K. Burnwal, Aditya Singh
wiley   +1 more source

Strontium isotope stratigraphy: LOWESS version 3: best fit to the marine Sr-isotope curve for 0-509 Ma and accompanying look-up table for deriving numerical age [PDF]

, 2001
An improved and updated version of the statistical LOWESS fit to the marine 87Sr/86Sr record and a revised look-up table (V3:10/99; available from j.mcarthur@ucl.ac.uk) based upon it enables straightforward conversion of 87Sr/86Sr to numerical age, and ...
Bailey, T.R., Howarth, R.J., McArthur, J.M.   +2 more
core  

Dinosaur footprints from the Duntulm Formation (Bathonian, Jurassic) of the Isle of Skye [PDF]

, 2004
The first in situ dinosaur tracks from Scotland were discovered at the top of the Duntulm Formation (Bathonian, Jurassic) near to Staffin in northeastern Skye.
ANDERSON, BOCK, CLARK, CLARK, HUDSON, LOCKLEY, LOCKLEY, LOCKLEY, LOCKLEY, ROMANO   +9 more
core   +1 more source