Results 11 to 20 of about 8,458 (202)

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+6 more sources

Revision of the conodont zonation of the Wenlock–Ludlow boundary in the Prague Synform [PDF]

open access: yesEstonian Journal of Earth Sciences, 2014
The regional zonation of the Wenlock–Ludlow boundary is established for the Prague Synform using refined data from updated conodont records. The following conodont zones have been recognized in the Prague Synform: the Ozarkodina sagitta sagitta Zone, the
Ladislav Slavík
doaj   +1 more source

The utility of the Upper Triassic conodont Primatella in Tethyan-Panthalassan correlation around the Carnian-Norian boundary

open access: yesFrontiers in Earth Science, 2023
The Upper Triassic conodont genus Primatella is important for recognizing the Carnian-Norian stage boundary in Panthalassan and Tethyan domains. Originally based on Canadian material from Black Bear Ridge in the Western Canada Sedimentary Basin, two key ...
Michael J. Orchard
doaj   +1 more source

The Llandovery (Silurian) conodont species diversity on the Upper Yangtze Platform, South China [PDF]

open access: yesEstonian Journal of Earth Sciences, 2014
Conodonts are one of the stratigraphically most important fossil groups in the Silurian Period. We examine the regional diversity dynamics of the Llandovery condonts on the Upper Yangtze Platform.
Zhongyang Chen   +3 more
doaj   +1 more source

Middle Ordovician Drepanoistodus (Vertebrata, Conodonta) from Baltica, with description of three new species

open access: yesEuropean Journal of Taxonomy, 2021
Drepanoistodus basiovalis (Sergeeva, 1963) is a common conodont species in Middle Ordovician strata of Baltica. For many years it has been widely accepted that the species encompasses a wide range of morphological plasticity.
Jan Audun Rasmussen   +2 more
doaj   +1 more source

Conodont biostratigraphy of the Crawford Group, Southern Uplands, Scotland [PDF]

open access: yes, 2002
Extensive new conodont collections from the Crawford Group, the oldest succession in the Southern Uplands of Scotland, support the previously documented biostratigraphical ages for the included formations.
Armstrong, Howard A.   +3 more
core   +1 more source

Late Triassic (Rhaetian) conodonts and ichthyoliths from Chile [PDF]

open access: yes, 2000
The Late Triassic of the back arc Domeyko Basin, Chile is characterized by the onset of marine sedimentation that persisted throughout the rest of the Mesozoic.
Sansom, Ivan J.
core   +1 more source

Dynamics of the conodont diversity in the Late Devonian–Early Carboniferous (Famennian–Serpukhovian)

open access: yesЛитосфера, 2019
Subject. The article is aimed to evaluate of the conodont diversity dynamics at the species level in the Famennian – Serpukhovian interval.Materials and methods.
A. V. Zhuravlev
doaj   +1 more source

Upper Devonian (Famennian) conodonts from radiolarian cherts, Loei Terrane, Loei Province, Northeast Thailand [PDF]

open access: yesResearch & Knowledge, 2015
Conodonts from radiolarian cherts in the Loei Terrane of Loei Province, Northeast Thailand, include Palmatolepis triangularis, P. minuta minuta, P. minuta wolskae and polygnathids and indicate a Famennian crepida Zone age.
Clive Burrett   +2 more
doaj   +1 more source

Climate warming, euxinia and carbon isotope perturbations during the Carnian (Triassic) Crisis in South China [PDF]

open access: yes, 2016
The Carnian Humid Episode (CHE), also known as the Carnian Pluvial Event, and associated biotic changes are major enigmas of the Mesozoic record in western Tethys.
Bond, D.P.G.   +8 more
core   +2 more sources

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