Results 11 to 20 of about 691 (175)

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 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

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

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

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

Carbon isotope values in conodont elements from the latest Devonian–Early Carboniferous carbonate platform facies (Timan-Pechora Basin) [PDF]

open access: yesEstonian Journal of Earth Sciences, 2018
The δ13Corg values and their variations in conodont elements of the latest Famennian–Tournaisian species Polygnathus parapetus Druce are considered. The conodonts studied come from the latest Famennian–Tournaisian interval of the Kamenka River section ...
Andrey V. Zhuravlev, Irina V. Smoleva
doaj   +1 more source

A dataset of fine-grained fossils of the conodont genus Hindeodus for classification using convolutional neural networks

open access: yes中国科学数据, 2023
With the rise of artificial intelligence, the booming application of convolutional neural networks to the classification and identification of fossils has attracted more and more attention. According to our survey, it is found that the species classified
DUAN Xiong
doaj   +1 more source

On the Conodonts

open access: yesAnnals and Magazine of Natural History, 1887
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Rohon, Josef Victor   +1 more
openaire   +3 more sources

The Lower Triassic platy limestone in the Jajce area (Bosnia and Herzegovina)

open access: yesGeologija, 2014
The study presents palaeontological and sedimentological data of the Lower Triassic strata of the Jajce area in Bosnia and Herzegovina. Four microfacies types were differentiated: coarse grained bioclastic packstones, fine grained bioclastic packstones,
Tea Kolar-Jurkovšek   +6 more
doaj   +1 more source

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