Results 41 to 50 of about 704 (154)

Biostratigrafia a conodonti del Famenniano superiore nella sezione di La Serre Trench C, Montagne Noire (Francia) [PDF]

open access: yes, 2018
La tesi ha avuto come oggetto l'analisi di alcuni campioni provenienti dalla sezione stratigrafica di La Serre Trench C (Montagne Noire, Francia meridionale), situata nel sud – ovest della Francia, in particolare nella porzione sud – orientale della ...
Santini, Filippo
core  

Lower and Middle Famennian (Upper Devonian) rugose corals from southern Belgium and northern France [PDF]

open access: yes, 2012
After the late Frasnian extinctions, the rugose corals slowly recovered during the Lower and Middle Famennian (crepida to marginifera conodont zones) in southern Belgium and northern France (Avesnois) (Namur–Dinant Basin). Six genera represented by seven
Denayer, J.   +3 more
core  

New data on the incertae sedis biota and foraminifera of the mid-Famennian Baelen Member (Late Devonian, eastern Belgium) [PDF]

open access: yes, 2016
The Baelen mud mounds in eastern Belgium represent a local member of the mid-Famennian Souverain-Pré Formation (an important carbonate interval within the Condroz Sandstone Group).
Dreesen, Roland   +3 more
core   +1 more source

Autopsy of a biological extinction example: the Frasnian-Famennian boundary crisis (364 Ma) [PDF]

open access: yes, 1999
Without studying the causes of the F/F boundary mass extinction, the precise analysis of ostracod species shows evolutionary process only discernable it the global scale.
Casier, J.G., Lethiers, F.
core  

The late Frasnian rhynchonellid genus Pammegetherhynchus (Brachiopoda)in Poland, and its relevance to the Kellwasser Crisis [PDF]

open access: yes, 1998
The rhynchonellid species, Pammegetherhynchus kowalaensis sp. n., occurs in the late Frasnian (Early to Late Palmatolepis rhenana, and possibly early Palmatolepis linguiformis conodont zones) marly-bituminous succession at Kowala (various outcrops) in ...
Racki, G.   +2 more
core  

Disrupted continental environments around the Devonian-Carboniferous Boundary: introduction of the tener event [PDF]

open access: yes, 2016
Recent refinements of the palynological stratigraphic scheme around the Devonian-Carboniferous Boundary in southern Belgium result in new questions on the effect of the Hangenberg Biocrisis on spores and on the validity of some ‘biozones ...
Denayer, J., Prestianni, C., Sautois, M.
core   +1 more source

A volcanic scenario for the Frasnian–Famennian major biotic crisis and other Late Devonian global changes: More answers than questions? [PDF]

open access: yes, 2020
Although the prime causation of the Late Devonian Frasnian–Famennian (F–F) mass extinction remains conjectural, such destructive factors as the spread of anoxia and rapid upheavals in the runaway greenhouse climate are generally accepted in the Earth ...
Racki, Grzegorz
core   +1 more source

Geochemical and ecological aspects of lower Frasnian pyrite-ammonoid level at Kostomłoty (Holy Cross Mountains, Poland) [PDF]

open access: yes, 2004
The lower Frasnian (transitans Zone with Ancyrodella priamosica = MN 4 Zone) rhythmic basin succession of marly limestones and shales (upper Szydlówek Beds) at Kostomloty, western Holy CrossMts., Central Poland, contains a record of the transgressive ...
Bond, D.P.G.   +3 more
core  

Using elemental chemostratigraphy on Mid-Late Frasnian platform-top successions from the Lennard Shelf outcrops, Canning Basin, Western Australia. [PDF]

open access: yes, 2017
High-resolution chronostratigraphic correlation using elemental chemostratigraphy in platform carbonates is typically difficult to achieve. Here, elemental chemostratigraphy is used to correlate between two platform-top, carbonate-dominated field ...
Caulfield-Kerney, Samuel   +9 more
core   +1 more source

Post-Kellwasser event recovery and diversification of phacopid trilobites in the early Famennian (Late Devonian) [PDF]

open access: yesBulletin of Geosciences, 2019
While no Frasnian phacopid genera are known to survive the terminal Frasnian Kellwasser extinction event, recovery of phacopids in the early Famennian is characterised by one of the highest origination rates of the clade. In this study species and subspecies currently known are updated with regard to their age distribution according to conodont-based ...
openaire   +3 more sources

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