Results 11 to 20 of about 8,547 (241)

TREPOSTOME BRYOZOANS FROM THE LOWER - MIDDLE DEVONIAN OF NW SPAIN

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2010
The present paper presents descriptions of 11 trepostome bryozoan species from the material deposited at the Geological Centrum Göttingen, Germany, and Nationaal Natuurhistorisch Museum (Naturalis), Leiden, Netherlands.
ANDREJ ERNST
doaj   +2 more sources

Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism

open access: yesGeophysical Monograph Series, Page 247-262., 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.
Lawrence M. E. Percival   +3 more
wiley  

+12 more sources

On the graptolite schist's formation, Silurian-Lower Devonian, in the Carpatho-Balkanides of eastern Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2005
The fabric of the Silurian and a part of the Lower Devonian in the Carpatho-Balkanides of eastern Serbia, i.e. in two large geotectonic units, the Kučaj Unit (Getic) and the Luznica Unit (West Kraishte), is reviewed in this paper.
Krstić Branislav   +2 more
doaj   +2 more sources

A new Lower Devonian arthrodire (Placodermi) from the NW Siberian Platform [PDF]

open access: yesEstonian Journal of Earth Sciences, 2013
A new genus and species of arthrodires, Eukaia elongata (Actinolepidoidei, Placodermi), is described from the Lower Devonian, ?Pragian of the Turukhansk region, NW Siberian Platform.
Elga Mark-Kurik
doaj   +2 more sources

TREPOSTOME AND CRYPTOSTOME BRYOZOANS FROM THE KONĔPRUSY LIMESTONE (LOWER DEVONIAN, PRAGIAN) OF ZLATÝ KŮŇ (CZECH REPUBLIC)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2008
The present paper presents descriptions of 10 bryozoan species from material deposited at the Geological Centrum Göttingen, Germany. The studied material comes from the Lower Devonian rocks (Konĕprusy Limestone, Pragian), exposed in a quarry near Zlatý ...
ANDREJ ERNST
doaj   +2 more sources

An investigation of the genus Mesacanthus (Chordata: Acanthodii) from the Orcadian Basin and Midland Valley areas of Northern and Central Scotland using traditional morphometrics [PDF]

open access: yesPeerJ, 2015
Mesacanthus is a common and speciose genus of acanthodian fish from Lower Old Red Sandstone and Middle Old Red Sandstone assemblages (representing the Lower Devonian and Middle Devonian respectively) and is well represented in many palaeoichthyology ...
Matthew G. Baron
doaj   +2 more sources

The smallest known Devonian tetrapod shows unexpectedly derived features [PDF]

open access: yesRoyal Society Open Science, 2020
A new genus and species of Devonian tetrapod, Brittagnathus minutus gen. et sp. nov., is described from a single complete right lower jaw ramus recovered from the Acanthostega mass-death deposit in the upper part of the Britta Dal Formation (upper ...
Per E. Ahlberg, Jennifer A. Clack
doaj   +1 more source

Earliest record of transfer cells in Lower Devonian plants [PDF]

open access: yesNew Phytologist, 2021
Summary Key sources of information on the nature of early terrestrial ecosystems are the fossilized remains of plants and associated organic encrustations, which are interpreted as either biofilms, biological soil crusts or lichens. The hypothesis that some of these encrustations might be the remains of the thalloid gametophytes of embryophytes ...
Dianne Edwards   +6 more
openaire   +2 more sources

Devonian-Carboniferous palynoflora

open access: yes, 2020
Palynomorph assemblages and palynofacies analysis have been performed on several core samples from the Devonian–Carboniferous deposits identified in five wells located in the eastern part of the Moesian Platform.
Daniel Tabara (8670849)
core   +2 more sources

New data about the age of the Dershor Formation (Lower Devonian) on the Chernyshev swell (Timan-Pechora petroleum province) [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2023
Lithological and biostratigraphical studies of the stratotyp section of the Lower Devonian Dershor Formation, represented in outcrops in the north of the Chernyshev swell, have been carried out. In the section of the Dershor Formation, a sequence of five
Sokolova L.V., Nechaev M.S., Kotik I.S.
doaj  

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