Orbital pacing and secular evolution of the Early Jurassic carbon cycle [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2020 Marisa S Storm +2 more
exaly +2 more sources
Plant macrofossils from the Shemshak Formation, Rudbar, western Alborz [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2021 Plant macrofossils from the Shemshak Formation, Rudbar, western Alborz, collected at two distinct horizons, including horizon 1 (Koushk area) and horizon 2 (northern Rudbar), are examined to determine the relative age and sedimentary environments of the ...
Solmaz Sadeghi, Hossein Hashemi
doaj +1 more source
Temporal patterns in disparity and diversity of the Jurassic ammonoids of southern Germany [PDF]
Fossil Record, 2011 A morphometric analysis of the characteristic whorl cross-sections of 1,200 Jurassic ammonoid species from southern Germany enabled us to characterise their morphospace.
M. S. Simon, D. Korn, S. Koenemann
doaj +5 more sources
Early and middle Jurassic sequence stratigraphic division of M coalfield in Xinjiang [PDF]
E3S Web of Conferences, 2022 The coal accumulation in the M coalfield occurred in the Early-Middle Jurassic. There are three main coal-bearing strata in the M coalfield, the Early Jurassic Talicike Formation, the Yangxia Formation and the Middle Jurassic Kizilenur Formation.
Yao Qiuhui, Cui Kai
doaj +1 more source
Sinemurian-Pliensbachian boundary event (Early Jurassic): Current status and future challenges
地质科技通报, 2023 The Lower Jurassic is composed of the Hettangian, Sinemurian, Pliensbachian and Toarcian, among which the Toarcian oceanic anoxic events (T-OAE) have been widely studied. Depositions of black shales and negative excursions of both δ13Corg and δ13Ccarb at
Yu Ge, Zhiqiang Shi
doaj +1 more source
A new basal sauropod dinosaur from the middle Jurassic of Niger and the early evolution of sauropoda. [PDF]
PLoS ONE, 2009 The early evolution of sauropod dinosaurs is poorly understood because of a highly incomplete fossil record. New discoveries of Early and Middle Jurassic sauropods have a great potential to lead to a better understanding of early sauropod evolution and ...
Kristian Remes +9 more
doaj +1 more source
Refining the marine reptile turnover at the Early–Middle Jurassic transition [PDF]
PeerJ, 2021 Even though a handful of long-lived reptilian clades dominated Mesozoic marine ecosystems, several biotic turnovers drastically changed the taxonomic composition of these communities.
Valentin Fischer, Robert Weis, Ben Thuy
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Initial results of coring at Prees, Cheshire Basin, UK (ICDP JET project): towards an integrated stratigraphy, timescale, and Earth system understanding for the Early Jurassic [PDF]
Scientific Drilling, 2023 Drilling for the International Continental Scientific Drilling Program (ICDP) Early Jurassic Earth System and Timescale project (JET) was undertaken between October 2020 and January 2021. The drill site is situated in a small-scale synformal basin of the
S. P. Hesselbo +74 more
doaj +1 more source
Tip dating supports novel resolutions of controversial relationships among early mammals [PDF]
, 2020 The estimation of the timing of major divergences in early mammal evolution is challenging due to conflicting interpretations of key fossil taxa. One contentious group is Haramiyida, the earliest members of which are from the Late Triassic.
Beck, RMD, King, B
core +2 more sources
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