Results 21 to 30 of about 4,368 (245)

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

Bryozoan Diversity Dynamics at the Devonian–Carboniferous Transition: Evidence from Transcaucasia

open access: yesJournal of Marine Science and Engineering, 2022
The Devonian–Carboniferous transition was marked by a series of perturbations in the geological and biological evolution. The palaeontological data from Transcaucasia allowed the bryozoan diversity dynamics on the northern Gondwanan margin (southern ...
Zoya A. Tolokonnikova, Dmitry A. Ruban
doaj   +1 more source

Upper Devonian mercury record from North America and its implications for the Frasnian–Famennian mass extinction

open access: yes, 2021
The Frasnian–Famennian biotic crisis (~372 Ma) was one of the “big five” mass extinction events in the Phanerozoic. This event was associated with dramatic climatic and oceanographic perturbations, including oceanic anoxia, global cooling, sea-level ...
Zeyang Liu   +6 more
semanticscholar   +1 more source

Late Devonian (Famennian) to Carboniferous (Mississippian-Pennsylvanian) conodonts from the Anarak section, Central Iran

open access: yesPalaeobiodiversity and Palaeoenvironments, 2021
A relatively complete conodont record from Famennian to the Mississippian/Pennsylvanian boundary was investigated in the Anarak section, Central Iran. The studied interval belongs to the Bahram, Shishtu, Ghaleh and Absheni formations.
Elahe Sattari   +3 more
semanticscholar   +1 more source

Late Devonian (Famennian) Chondrichthyes from Mexico [PDF]

open access: yesJournal of Vertebrate Paleontology, 2019
The Paleozoic vertebrate fossil record from Mexico is very scarce and strongly biased by rock exposure, composed mainly of upper Paleozoic (Carboniferous and Permian) outcrops (e.g., Sánchez-Zavala et al., 1999; Poole et al., 2005; González- Rodríguez et al., 2013).
Carlos Martínez-Pérez   +5 more
openaire   +2 more sources

Tristichopterids (Sarcopterygii, Tetrapodomorpha) from the Upper Devonian tetrapod-bearing locality of Strud (Belgium, upper Famennian), with phylogenetic and paleobiogeographic considerations

open access: greenJournal of Vertebrate Paleontology, 2020
We describe new material of the tristichopterids cf. Langlieria socqueti and cf. Eusthenodon wangsjoi and other unassignable tetrapodomorph remains from the upper Famennian locality of Strud, Belgium. Because of recent improvements in our tristichopterid
Sébastien Olive   +5 more
openalex   +3 more sources

First African thylacocephalans from the Famennian of Morocco and their role in Late Devonian food webs. [PDF]

open access: yesSci Rep, 2020
Thylacocephalans are enigmatic arthropods with an erratic Palaeozoic and Mesozoic fossil record. In many of the few localities where they occur, they are quite abundant.
Jobbins M, Haug C, Klug C.
europepmc   +2 more sources

Stratigraphy of the Upper Devonian - Lower Carboniferous of south-west of Lyzha-Kyrtael swell (Pechora Plate eastward) [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2023
A new local stratigraphic scheme is proposed for the upper Famennian - Serpukhovian interval of the south-west of Lyzha-Kyrtael Swell. The stratigraphic sequence is composed of the Famennian carbonates of the Kamenka Formation, the Famennian - middle ...
Zhuravlev A.V.
doaj  

FAMENNIAN CONODONTS FROM KAL-E-SARDAR SECTION, EASTERN TABAS, CENTRAL IRAN

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2009
Sixty-three conodont species and subspecies from the Kal-e-Sardar section indicate that the strata span early to late Famennian. Contrary to most of the sections measured in the Shishtu Formation, the icriodid-polygnathid biofacies is restricted to the ...
HOSSEIN GHOLAMALIAN   +2 more
doaj   +1 more source

A new assessment of the Late Devonian antiarchan fish Bothriolepis leptocheira from South Timan (Russia) and the biotic crisis near the Frasnian–Famennian boundary [PDF]

open access: yesActa Palaeontologica Polonica, 2017
The species of the Late Devonian, earliest Famennian placoderm fish Bothriolepis jeremejevi has been downranked to subspecies Bothriolepis leptocheira jeremejevi comb. nov.
Ervīns Lukševičs   +2 more
doaj   +1 more source

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