Results 1 to 10 of about 40,471 (242)
Rethinking therapsid phylogeny through Bayesian and cladistic approaches [PDF]
Scientific ReportsTherapsids are early-diverging synapsids that thrived during the Permian and Triassic periods, and ultimately gave rise to mammals. They include six major groups, which already exhibited considerable diversity at their first appearance in the fossil ...
Alienor Duhamel +5 more
doaj +2 more sources
Carbon cycle perturbations and environmental change of the middle permian and Late Triassic Paleo-Antarctic circle [PDF]
Scientific ReportsDuring the middle Permian through the Triassic, Tasmania moved from paleo-latitudes of 78° to 69°S, wedged between Antarctica and Australia, within the paleo-South polar circle.
Wahyuningrum Lestari +4 more
doaj +2 more sources
Evolution of prototype basin and change of tectonic-sedimentary pattern in Paleozoic, Ordos Basin
Shiyou shiyan dizhi, 2022 The Ordos Basin is a craton basin developed based on the Precambrian rift system during Permian. It has experienced two stages of evolution including the Early Paleozoic craton marginal depression and Late Paleozoic intra-craton depression.
Faqi HE, Fubin WANG, Liguo GUO, Chuan AN
doaj +1 more source
Journal of Natural Gas Geoscience, 2020 Breakthroughs have been made for the natural gas exploration of the Middle Devonian and the Middle Permian formations in the Sichuan Basin in recent years.
Zengye Xie +9 more
doaj +1 more source
Petroleum Exploration and Development, 2022 Based on field geological survey, interpretation of seismic data and analysis of drilling and logging data, the evolution of geological structures, stratigraphic sedimentary filling sequence and sedimentary system around the Bogda Mountain were analyzed ...
Youxing YANG +7 more
doaj +1 more source
Early evolution of beetles regulated by the end-Permian deforestation
eLife, 2021 The end-Permian mass extinction (EPME) led to a severe terrestrial ecosystem collapse. However, the ecological response of insects—the most diverse group of organisms on Earth—to the EPME remains poorly understood.
Xianye Zhao +7 more
doaj +1 more source
Carboniferous rocks of Western Spitsbergen Island: paleomagnetic data [PDF]
Нефтегазовая геология: Теория и практика, 2022 The paper presents the results of studying the samples of rocks of the Carboniferous age collected in 1985 on Western Spitsbergen Island on the eastern coast of the Recherchfjorden.
Iosifidi A.G.
doaj +1 more source
Early-Middle Permian palynoflora of Shandong Province, eastern North China
Journal of Palaeogeography, 2020 The Permian Taiyuan and Shanxi formations exposed in Shandong Province, eastern North China, contain abundant spores and pollen. In this study, a total of 42 genera and 146 species of spores and pollen from these Permian formations, native to northern ...
Tian-Tao Yin +3 more
doaj +1 more source
Road and bridge construction across gypsum karst in England [PDF]
, 2002 Gypsum karst problems in the Permian and Triassic sequences of England have caused difficult conditions for bridge and road construction. In Northern England, the Ripon Bypass crosses Permian strata affected by active gypsum karst and severe subsidence ...
Anthony H Cooper +20 more
core +3 more sources
Journal of Palaeogeography, 2018 A geological event that happened at the end of the Middle Permian resulted in different levels of erosion in a shallow-water platform of South China, which led to diverse geological records in different sections.
Ke-Yu Zhu +3 more
doaj +1 more source