Characterizing the Oldenburg ‘Butter Shale’ from the Upper Ordovician (Katian) Waynesville Formation along the Cincinnati Arch, USA [PDF]
The Upper Ordovician (Katian) strata of the Cincinnati Arch contain numerous mudstone units known locally as ‘butter shales’ or ‘trilobite shales’. Most of these deposits are heavily collected for their excellently-preserved trilobites.
Aucoin, Christopher D. +3 more
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Rhombot and the dawn of paleobionics. [PDF]
Proc Natl Acad Sci U S A, 2023 Ausich WI.
europepmc +1 more source
Geochemical Changes in the Late Ordovician to Early Silurian Interval in the Northern Margin of the Upper Yangtze Platform, Southern China: Implications for Hydrothermal Influences and Paleocean Redox Circumstances. [PDF]
ACS Omega, 2023 Fu X +5 more
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Shared patterns in body size declines among crinoids during the Palaeozoic extinction events. [PDF]
Sci Rep, 2021 Salamon MA +4 more
europepmc +1 more source
Selectivity and the effect of mass extinctions on disparity and functional ecology. [PDF]
Sci Adv, 2021 Cole SR, Hopkins MJ.
europepmc +1 more source
Journal of PaleontologyAbstract Intense commercial exploitation of fossils in the famous El Qaid Errami area in the last 20 years has led to the discovery of the interesting Declivolithus Fauna in the Moroccan Anti-Atlas.
Sofia Pereira +2 more
openaire +2 more sources
Ordovician-Silurian true polar wander as a mechanism for severe glaciation and mass extinction. [PDF]
Nat Commun, 2022 Jing X +5 more
europepmc +1 more source
A long-term record of early to mid-Paleozoic marine redox change. [PDF]
Sci Adv, 2021 Sperling EA +19 more
europepmc +1 more source
Semantic analysis of Ethnopoetics of Pangunraun in mariage negotiations of Maanyan Dayak of Central Kalimantan [PDF]
, 2014 This paper is intended to describe what is the content of ethnopetic of Pangunraunas they are practised in negotiating marriage proposals of Maanyan Dayak of Central Kalimantan.
Mage, Arnusianto M.
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Welsh Borderland Geological Framework Project : the geology and applied geological issues of the region around Knighton, Powys : a scoping study [PDF]
, 2017 This presents a review of the extent of geological knowledge and available analogue and digital data for the region around Knighton, Powys (Figure 1). Although a key consideration underlying this report is the lack of modern geological mapping for the ...
Kendall, R., Thomas, C.W.
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