Results 1 to 10 of about 7,177,831 (412)

Biogeographic dynamics of graptolite species during the end-Ordovician mass extinction in South China [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Spatial and temporal analysis of geographical biodiversity dynamics and reconstruction of species distribution areas are essential for revealing the patterns of evolution of graptolites and their survival strategies during bio-events.
Qing Chen, Linna Zhang
doaj   +1 more source

Global palaeogeographical implication of acritarchs in the Upper Ordovician [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
The Early–Middle Ordovician peri-Gondwana and Baltica acritarch provinces are easily recognizable, illustrating a clear provincialism of global phytoplankton.
Yan Kui   +4 more
doaj   +1 more source

A remarkable new halichondrid demosponge, Ptilospongia hemisphaeroidalis, from the latest Ordovician Beigong Biota, South China [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
A new halichondrid demosponge bubarid Ptilospongia hemisphaeroidalis gen. et sp. nov. is described from the latest Ordovician Beigong Biota in Jingxian County, Anhui Province, South China.
Lixia Li, Joachim Reitner
doaj   +1 more source

General Wang Dun and His Rebellion Against the Eastern Jin Dynasty [PDF]

open access: yesГуманитарный вектор, 2020
The article provides brief information about the rebellious aristocratic general Wang Dong against the ruling clan of Sima in the person of Sima Rui (years of life 276–323 AD, years of rule 318–323 AD), the first emperor of Eastern Jin, as well as ...
Chingis Ts. Tsyrenov
doaj   +1 more source

Isolation, Identification of A Swine-derived Streptococcus dysgalactiae subsp. equisimilis

open access: yesGuangdong nongye kexue, 2023
【Objective】Streptococcus dysgalactiae causes joint swelling and dyskinesia in pigs, which greatly reduces feed remuneration and economic benefits of pig farms. Recent studies suggest that Streptococcus dysgalactiae subsp.
Jinliang CHEN   +7 more
doaj   +1 more source

Taxonomic revision of Asialepidotus shingyiensis Su, 1959 (Halecomorphi, Holostei) from the Middle Triassic (Ladinian) of Guizhou and Yunnan, China [PDF]

open access: yesResearch & Knowledge, 2017
The holostean fish Asialepidotus shingyiensis, from the Middle Triassic (Ladinian) of Guizhou and Yunnan, China, was previously regarded as either a semionotiform ginglymodian or an amiiform halecomorph.
Guang-Hui Xu, Xin-Ying Ma
doaj   +1 more source

Objective assessment and analysis of abnormal causes of regional rainstorm events in South China

open access: yes暴雨灾害, 2021
Based on the daily precipitation data at 192 surface meteorological stations in South China from 1961 to 2019, the standard for regional rainstorm events in South China is defined, and all regional rainstorm events in South China are objectively and ...
Hongyu WU   +3 more
doaj   +1 more source

High-resolution carbon isotope stratigraphy of the Lower and Middle Ordovician succession of the Yangtze Platform, China [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Variation in the relative abundance of the stable carbon isotopes has been widely used to correlate Ordovician marine successions over the past two decades.
Rongchang Wu   +8 more
doaj   +1 more source

The second natural gas hydrate production test in the South China Sea

open access: yesChina Geology, 2020
Clayey silt reservoirs bearing natural gas hydrates (NGH) are considered to be the hydrate-bearing reservoirs that boast the highest reserves but tend to be the most difficult to exploit. They are proved to be exploitable by the first NGH production test
Ye Jianliang   +26 more
semanticscholar   +1 more source

The earliest known stromatoporoid and its contribution to reef construction [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Stromatoporoid-type hypercalcified sponges are known to have contributed to the global reef system since the late Middle Ordovician until their major disappearance in the latest Devonian.
Juwan Jeon   +6 more
doaj   +1 more source

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