Acritarchs of Llandeilo and Caradoo age from classic localities in Britain. [PDF]
, 1979 The last two decades have seen the publication of a large number of papers dealing with Palaeozoic acritarchs including many devoted to the description of Ordovician assemblages.
Turner, Robert Eric
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First report of an aulaceratid stromatoporoid from the Ordovician of Baltica [PDF]
Estonian Journal of Earth SciencesThe aulaceratid stromatoporoids first appeared in the late Middle Ordovician and had achieved a worldwide distribution in tropical to subtropical shallow-marine environments by the Late Ordovician; however, their presence in Baltica has not been ...
Juwan Jeon, Ursula Toom
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Geofluids, 2021 The Permian tight clastic reservoir and Ordovician carbonate reservoir were developed in the central-southern Ordos Basin. This study investigated the fluid inclusion petrography, diagenetic fluid characteristics, formation process of natural gas ...
Ruijing Zhu +6 more
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Terminal suturing of Gondwana along the southern margin of South China Craton : evidence from detrital zircon U-Pb ages and Hf isotopes in Cambrian and Ordovician strata, Hainan Island [PDF]
, 2014 This work was supported by the National Natural Science Foundation of China (grants 41472086 and 41272120), “111” Project (B08030), the fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) (CUG2012019240 and ...
Zhong, Z. +4 more
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Rare earth geochemistry of Arenig cherts from the Ballantrae Ophiolite and Leadhills Imbricate Zone, southern Scotland: implications for origin and significance to the Caledonian Orongeny [PDF]
, 1999 Rare earth element (REE) data from low to mid-Arenig cherts are used to test competing models for the early Ordovician evolution of the Laurentian margin in the northern British Isles.
Armstrong, H.A., Owen, A.W., Floyd, J.D.
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Miospore assemblages from Late Ordovician (Katian-Hirnantian), Ghelli Formation, Alborz Mountain Range North-eastern Iran: Palaeophytogeographic and palaeoclimatic implications [PDF]
Journal of Sciences, Islamic Republic of Iran, 2016 Well-preserved miospore assemblages are recorded from the Late Ordovician (Katian-Hirnantian), Ghelli Formation in Pelmis-gorge at the north-eastern Alborz Mountain The palynomorphs were extracted from siliciclastic deposits which are well-dated by using
M. Ghavidel-syooki
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AGU Advances, 2022 The Ordovician (Hirnantian; 445 Ma) hosts the second most severe mass extinction in Earth history, coinciding with Gondwanan glaciation and increased geochemical evidence for marine anoxia.
Nevin P. Kozik +4 more
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Five new malformed trilobites from Cambrian and Ordovician deposits from the Natural History Museum [PDF]
PeerJ, 2023 Injured trilobites present insight into how a completely extinct group of arthropods responded to traumatic experiences, such as failed predation and moulting complications.
Russell D.C. Bicknell, Patrick M. Smith
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Terrane evolution of the paratectonic Caledonides of northern Britain [PDF]
, 2001 A stratigraphically constrained re-evaluation of terrane amalgamation in the Caledonides of northern Britain allows the development of a new orogenic scenario which accounts for many of the outstanding problems in the paratectonic Caledonides and ...
H. A. ARMSTRONG +5 more
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The Skiddaw Group of Cumbria : early Ordovician Turbidite sedimentation and provenance on an evolving microcontinental margin. [PDF]
, 1992 During the Early Palaeozoic, the southern British Isles were part of a microcontinent Eastern Avalonia. In the early Ordovician Eastern Avalonia was close to the continent of Gondwana. in high southern latitudes.
Moore, Richard Maurice
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