Results 1 to 10 of about 10,959 (166)
A Late Cretaceous true polar wander oscillation. [PDF]
Nat Commun, 2021 AbstractTrue polar wander (TPW), or planetary reorientation, is well documented for other planets and moons and for Earth at present day with satellites, but testing its prevalence in Earth’s past is complicated by simultaneous motions due to plate tectonics. Debate has surrounded the existence of Late Cretaceous TPW ca.
Mitchell RN +6 more
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The birth of the Sava Suture Zone: The early geological observations and the context of bimodal magmatism (southern Belgrade outskirts; Anđelković, 1973) [PDF]
Geološki Anali Balkanskoga Poluostrva, 2022 This paper presents one of the significant results of the research of Prof. Dr. Milodrag Anđelković. The study underlines the first field record providing the evidence of the Upper Cretaceous bimodal magmatism that eventually led towards the definition ...
Spahić Darko
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Ecomorphological diversification of squamates in the Cretaceous [PDF]
Royal Society Open Science, 2021 Squamates (lizards and snakes) are highly successful modern vertebrates, with over 10 000 species. Squamates have a long history, dating back to at least 240 million years ago (Ma), and showing increasing species richness in the Late Cretaceous (84 Ma ...
Jorge A. Herrera-Flores +2 more
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Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2022 The paper presents original and published data of radioisotope dating of volcanic rocks of the Magellan Seamounts. These data and available geological materials allow us to distinguish five major volcanic complexes of different ages in the guyots of the ...
Syedin V.T. +2 more
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A new hadrosauroid dinosaur from the early late cretaceous of Shanxi Province, China. [PDF]
PLoS ONE, 2013 BackgroundThe origin of hadrosaurid dinosaurs is far from clear, mainly due to the paucity of their early Late Cretaceous close relatives. Compared to numerous Early Cretaceous basal hadrosauroids, which are mainly from Eastern Asia, only six early Late ...
Run-Fu Wang +7 more
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Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2023 Five tectonic-magmatic stages are distinguished in the evolution of the guyots of the Magellan Seamounts: 1 — Late Jurassic-Early Cretaceous (earliest Cretaceous — ~160–140 (?) Ma); 2 — Early Cretaceous (Late Barremian(?)-Aptian-Albian — ~127–96 Ma); 3 —
V.T. S'edin +2 more
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Pterosaurs from the Late Cretaceous of Angola
Diversity, 2022 Here, we describe the first pterosaur remains from Angola, an assemblage of fourteen bones from the Lower Maastrichtian marine deposits of Bentiaba, Namibe Province. One new species is introduced, Epapatelo otyikokolo, gen. et sp. nov., which comprises an articulated partial left humerus and ulna as well as an articulated left ulna and radius (from a ...
Alexandra E. Fernandes +6 more
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A turiasaurian sauropod dinosaur from the Early Cretaceous Wealden Supergroup of the United Kingdom [PDF]
PeerJ, 2019 The Jurassic/Cretaceous (J/K) boundary, 145 million years ago, has long been recognised as an extinction event or faunal turnover for sauropod dinosaurs, with many ‘basal’ lineages disappearing.
Philip D. Mannion
doaj +2 more sources
Frontiers in Earth Science, 2022 Sedimentary investigations, petrography, heavy mineral and conglomerate component analyses, and detrital zircon U-Pb geochronology were conducted to reconstruct the sedimentary and source-to-sink evolution of the Southern Junggar Basin, an ...
Xutong Guan +4 more
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Evidence for global cooling in the Late Cretaceous [PDF]
Nature Communications, 2014 AbstractThe Late Cretaceous ‘greenhouse’ world witnessed a transition from one of the warmest climates of the past 140 million years to cooler conditions, yet still without significant continental ice. Low-latitude sea surface temperature (SST) records are a vital piece of evidence required to unravel the cause of Late Cretaceous cooling, but high ...
C. Linnert +9 more
openaire +8 more sources