Results 71 to 80 of about 2,787 (192)

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

Fish Scales: A Multifunctional Biomaterial from Nature

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Re-study of Guangdedendron micrum from the Late Devonian Xinhang forest. [PDF]

open access: yesBMC Ecol Evol, 2022
Gao X   +5 more
europepmc   +1 more source

Composition and Provenance of Victoria Group Sandstones in Southern North Victoria Land, Antarctica

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.
Three distinct source areas contributed to sandstones of the Victoria Group within the Transantarctic Basin in southern North Victoria Land. During the Permian, quartzose sandstones were derived from erosion of the local Ross Orogen, likely from an uplifted swell in the area of today's Ross Sea, the Ross High.
Martin Elsner   +6 more
wiley   +1 more source

Diversity among fossil micrometeorites in the late Devonian

open access: yesGeochimica et Cosmochimica Acta
A total of 1222 Micrometeorites (MMs) from the late Devonian period were extracted from 26 kg of carbonates host rock fragments from the Chanxhe section in Belgium, from the Latest Famennian around 360 Myr, through magnetic separation and optical picking following dissolution with mild HCl, making it one of the largest fossil MMs collection, the ...
Krämer Ruggiu, Lisa   +7 more
openaire   +2 more sources

Palynology and Palaeoecology of the Zakeen Formation, Kish Gasfield, northern Persian Gulf

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2014
Introduction During Middle Devonian and contemporaneous with the global rise of sea-level, the westward transgression commenced from north and northeastern Iran and culminated in early Late Devonian.
Hossein Hashemi , Nima Nezam Vafa
doaj  

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