Results 31 to 40 of about 4,368 (245)

Some notes on a variability of Bothriolepidids (Placodermi, Antiarchi): unusual specimen of Livnolepis Heckeri (Luksevics) from the famennian of Tver region, European Russia

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2019
The fragment of the skull cap of placoderm Livnolepis heckeri (Luksevics) from the Bilovo Formation (Famennian, Upper Devonian) near the Bilovo Village of Tver Region has been described.
S. V. Moloshnikov, V. V. Linkevich
doaj   +1 more source

Late Devonian (Frasnian–Famennian) palynomorphs from the Padeha and Bahram Formations of Shahzadeh Mohammad section, northwest of Kerman, Iran

open access: yesActa Palaeobotanica, 2022
A diverse and well-preserved microphytoplankton assemblage is reported from a measured section of Frasnian–Famennian (Upper Devonian) Padeha and Bahram Formations in Shahzadeh Mohammad area, northwestern Kerman, southeast Iran. The palynoflora assemblage
Roghayeh Rouzegar, Péter Ozsvárt
doaj   +1 more source

SYSTEMATIC POSITION OF ANTIARCHS (VERTEBRATA, PLACODERMI) FROM THE FAMENNIAN OF TVER REGION, RUSSIA

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2017
New materials of the placoderm fish Bothriolepis heckeri Luksеvics from the Famennian of the Bilovo locality (Tver Region) are studied. This species is very similar to Livnolepis zadonica (H.Obrucheva) in the structure of cranial and postcranial armours ...
S. V. Moloshnikov, V. V. Linkevich
doaj   +1 more source

Carbon isotopic composition of the Early Famennian conodonts and host carbonates of the Izma Formation (South Timan) [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2023
The variations in the carbon isotope composition of conodonts and host carbonates have been studied on material from the Lower Famennian of the southern part of the Timan-Pechora petroleum Province.
Zhuravlev A.V.
doaj  

Stratigraphic distribution and systematic composition of the Middle-Upper Devonian placoderms (anti-archs) from Central Kazakhstan

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2016
The stratigraphie distribution and systematic composition of the Middle-Upper Devonian remains of antiarchs from the sediments of Central Kazakhstan are analyzed. Central Kazakhstan ichthyofauna contains mainly endemic taxons of antiarchs.
S. V. Moloshnikov
doaj   +1 more source

Parasitism as a Long-Lasting Interaction-First Evidence From Paleozoic Corals. [PDF]

open access: yesEcol Evol
The peak of reef development in the middle Paleozoic resulted in a dense network of interactions between corals and their symbionts. The long duration (longevity) of one of the most common relationships, parasitism, has remained unevidenced so far. Here we report on a tabulate coral infested by parasites, where, based on growth bands, the duration of ...
Zapalski MK   +3 more
europepmc   +2 more sources

The latest Devonian (Famennian) phacopid trilobite Omegops from eastern Alborz, Iran; pp. 192–204

open access: gold, 2018
The Late Devonian (late Famennian) phacopid trilobites represented by Omegops tilabadensis sp. nov. are described and illustrated from the Khoshyeilaq Formation, eastern Alborz Mountains, North Iran.
Mansoureh Ghobadi Pour   +3 more
openalex   +2 more sources

Tabulate Corals after the Frasnian/Famennian Crisis: A Unique Fauna from the Holy Cross Mountains, Poland.

open access: yesPLoS ONE, 2016
Famennian tabulate corals were very rare worldwide, and their biodiversity was relatively low. Here we report a unique tabulate fauna from the mid- and late Famennian of the western part of the Holy Cross Mountains (Kowala and Ostrówka), Poland.
Mikołaj K Zapalski   +2 more
doaj   +1 more source

Alpinites and other Posttornoceratidae (Goniatitida, Famennian) [PDF]

open access: yesFossil Record, 2002
The rediscovery of the supposedly lost type allows a revision of Alpinites Bogoslovskiy, 1971, the most advanced genus of the Posttornoceratidae. The type-species, Alp. kayseri Schindewolf, 1923, is so far only known from the Carnic Alps. Alp.
R. T. Becker
doaj   +1 more source

Precisely dating the Frasnian–Famennian boundary: implications for the cause of the Late Devonian mass extinction

open access: yesScientific Reports, 2018
The Frasnian–Famennian boundary records one of the most catastrophic mass extinctions of the Phanerozoic Eon. Several possible causes for this extinction have been suggested, including extra-terrestrial impacts and large-scale volcanism. However, linking
L. Percival   +5 more
semanticscholar   +1 more source

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