Results 161 to 170 of about 1,994 (206)

Strud: old quarry, new discoveries. Preliminary report

open access: yesCarnets de Géologie, 2007
Prestianni Cyrille   +3 more
doaj  

Famennian (Upper Devonian) calcimicrobial (Renalcis) reef at Miaomen, Guilin, Guangxi, South China

open access: yesPalaeogeography, Palaeoclimatology, Palaeoecology, 2004
Famennian (Upper Devonian) reefs represent a calcimicrobial and stromatolitic reef framework with a few skeleton-dominated (stromatoporoid) examples after the skeletal metazoans in reef ecosystems were impacted on a global scale by the Frasnian-Famennian
Jian-Wei Shen, Gregory E Webb
exaly   +2 more sources

North-Gondwana – Laurussia dynamic paleogeography challenged by magnetic susceptibility through the Famennian

open access: yesGondwana Research, 2021
Large-scale magnetic susceptibility (MS) variations in ancient sediments are usually interpreted as related to sea-level and climate changes affecting the erosional regime and the amount of detrital input.
Girard Catherine, Corradini Carlo
exaly   +2 more sources

Palaeobiogeography of Famennian (Late Devonian) bryozoans

Palaeogeography, Palaeoclimatology, Palaeoecology, 2010
Abstract Bryozoans were widely distributed in marine habitats of the Famennian (Late Devonian) worldwide. This time interval was marked by gradual change in taxonomic composition of bryozoan faunas, which were insignificantly affected by global events (Upper Kellwasser, Handerberg). Distribution of bryozoan faunas was controlled by intrinsic factors (
Z A Tolokonnikova, Andrej Ernst
exaly   +2 more sources

Famennian charcoal of Belgium

Palaeogeography, Palaeoclimatology, Palaeoecology, 2010
Abstract Charcoal results from an incomplete combustion of biological material in anoxic conditions and has a high potential for three-dimensional cellular preservation. Most of the Belgian Upper Devonian flora is known through compression fossils, mainly from the siliciclastic Evieux Formation; no charcoal-bearing layers had been reported to date ...
Prestianni, Cyrille   +4 more
openaire   +2 more sources

Magnetostratigraphy susceptibility of the Frasnian/Famennian boundary

Palaeogeography, Palaeoclimatology, Palaeoecology, 2002
Magnetosusceptibility event and cyclostratigraphy (MSEC) is used to establish a non-polarity-based magnetostratigraphy susceptibility (MSS) between the stratotype region for the Frasnian/Famennian (F/F) boundary sequence in the Montagne Noire of southern France, the eastern Rheinisches Schiefergebirge of Germany, Belgium, the eastern Anti-Atlas of ...
Rex E Crick   +7 more
openaire   +1 more source

Archaeopteris from the Upper Famennian of Belgium: heterospory, nomenclature, and palaeobiogeography [PDF]

open access: yesReview of Palaeobotany and Palynology, 2001
New fertile specimens of Archaeopteris roemeriana from Upper (but not uppermost) Famennian strata of Belgium have been studied. Crowded sporangia are borne on non-laminate, three times bifurcate fertile leaves helically arranged around the fertile ultimate axes. Vegetative leaves occur both proximal and distal to the fertile leaves.
Maurice Streel
exaly   +4 more sources

FAMENNIAN TENTACULITIDS OF CHINA

Journal of Paleontology, 2000
Until recently, paleontologists believed tentaculitids became extinct by the end of the Frasnian. Lyaschenko (1958) described the youngest occurrence of the genera Styliolina and Homoctenus from the Frasnian of Russia. However, in Europe and North Africa, Lardeux (1969) proposed that Homoctenus ultimus pergracilis persisted into the Famennian ...
openaire   +1 more source

Famennian crinoids and blastoids (Echinodermata) from Mongolia

Palaeobiodiversity and Palaeoenvironments, 2020
Herein we report on the most abundant and diverse fauna of Palaeozoic crinoids and blastoids collected from Mongolia to date. The fauna is from the Late Devonian (Famennian) Samnuuruul Formation in western Mongolia. The fauna consists of two genera of blastoids and twelve genera of crinoids—four genera of camerates, three genera of flexibles, one ...
J. A. Waters   +4 more
openaire   +1 more source

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