Results 21 to 30 of about 63,232 (285)

Youngest occurrences of rhomaleosaurid plesiosaurs indicate survival of an archaic marine reptile clade at high palaeolatitudes [PDF]

open access: yesActa Palaeontologica Polonica, 2015
Rhomaleosaurid plesiosaurians were a common and ecologically significant component of Early Jurassic marine faunas, primarily as large-bodied predators. They declined in abundance and made their last fossil appearance in the Middle Jurassic. However, the
Roger B.J. Benson   +2 more
doaj   +1 more source

Biostratigraphic boundaries of Jurassic ages [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2020
From the perspective of geobiospheric history, the boundaries of the Jurassic age are considered. Eusto-migratory zoopeneplen are associated with a number of global geobiospheric events, such as mass extinctions, geochemical anomalies, and ocean anoxic ...
Repin Yu.S.
doaj   +1 more source

The first definitive Middle Jurassic atoposaurid (Crocodylomorpha, Neosuchia), and a discussion on the genus Theriosuchus [PDF]

open access: yes, 2015
Atoposaurids were a clade of semiaquatic crocodyliforms known from the Late Jurassic to the latest Cretaceous. Tentative remains from Europe, Morocco, and Madagascar may extend their range into the Middle Jurassic.
Brusatte, S   +6 more
core   +5 more sources

A Turiasaurian (Dinosauria, Sauropoda) Tooth from the Pliensbachian Hasle Formation of Bornholm, Denmark, Shows an Early Jurassic Origin of the Turiasauria

open access: yesDiversity, 2023
Turiasauria is a clade of basal sauropod dinosaurs hitherto only known from the Middle Jurassic (Bathonian) to the Lower Cretaceous (Valanginian). A new find of a shed tooth crown from the Lower Jurassic (Pliensbachian), Halse Formation of Bornholm ...
Jesper Milàn, Octávio Mateus
doaj   +1 more source

Environmental controls on the distribution of neoselachian sharks and rays within the British Bathonian (Middle Jurassic). [PDF]

open access: yes, 2003
Extensive sampling from a range of facies within the Bathonian (Middle Jurassic) of southern England has allowed the palaeoenvironmental distribution of a number of taxa of neoselachian sharks and rays to be assessed.
Underwood, Charlie J.
core   +1 more source

Fossils of the oldest diplodocoid dinosaur suggest India was a major centre for neosauropod radiation

open access: yesScientific Reports, 2023
The Early Jurassic and Cretaceous deposits of India are known for their diverse sauropod fauna, while little is known from the Middle and Late Jurassic. Here we report the first ever remains of a dicraeosaurid sauropod from India, Tharosaurus indicus gen.
Sunil Bajpai   +5 more
doaj   +1 more source

Jurassic Provenance System and Its Geological Implication in Altyn Piedmont, Qaidam Basin

open access: yesLithosphere, 2021
A petroleum system originating from Jurassic source rocks exists in Altyn piedmont. However, the Jurassic formation in this system is deformed by Yanshan-Himalayan tectonic movement, and related studies about its spatial distribution and sedimentary ...
X. Zeng   +6 more
doaj   +1 more source

Jurassic sedimentary evolution of southern Junggar Basin: Implication for palaeoclimate changes in northern Xinjiang Uygur Autonomous Region, China

open access: yesJournal of Palaeogeography, 2014
Junggar Basin, located in northern Xinjiang, presents continuous and multikilometer-thick strata of the Jurassic deposits. The Jurassic was entirely terrestrial fluvial and lacustrine deltaic sedimentation.
Shun-Li Li   +3 more
doaj   +1 more source

Mesozoic and Cenozoic diktyogenese in the Lower Yangtze region

open access: yesShiyou shiyan dizhi, 2020
Three stages of metamorphic tectonic movements took place in the Lower Yangtze region due to the joint action of the Tethys and the Pacific plates from the Middle/Late Triassic to the Early/Middle Jurassic, the Late Jurassic to the Early Cretaceous, and ...
Daogui DING, Fengli LI
doaj   +1 more source

Environmental and climatic proxies for the Cañadón Asfalto and Neuquén basins (Patagonia, Argentina): review of middle to upper jurassic continental and near coastal sequences [PDF]

open access: yes, 2015
In this review, we include several proxies (sedimentology, palynology, invertebrates) from the Cañadón Asfalto and Neuquén basins, to infer the environments and regional climatic context during the Middle to Late Jurassic of Patagonia.
Cabaleri, Nora Graciela   +6 more
core   +1 more source

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