Results 41 to 50 of about 460 (165)

Pollen Organ Telangiopsis sp. of Late Devonian Seed Plant and Associated Vegetative Frond. [PDF]

PLoS ONE, 2016
Pollen organ Telangiopsis sp., associated with but not attached to vegetative fronds, has been collected from the Upper Devonian (Famennian) Wutong Formation, Dongzhi County, Anhui Province, China. Fertile axes with terminal pollen organs are dichotomous
De-Ming Wang, Mei-Cen Meng, Yun Guo
doaj   +1 more source

Enhanced continental weathering and its marine environmental effects in the late Devonian: Constraints from strontium isotopes of carbonate rocks in South China

地质科技通报, 2022
The Frasnian-Famennian extinction in the late Devonian was one of the largest mass extinction during Earth's history, which was believed to be caused by the plant landing-indued intensification of terrestrial chemical weathering and the consequent ...
Faliang Deng, Xijun Liu, Hongxia Yu, Feng Yang, Yonghai Yuan   +4 more
doaj   +1 more source

First insights into the Devonian–Carboniferous boundary conodonts from the depression deposits of the Kama-Kinel Trough System, East European Platform (Volga-Ural petroleum province, Sarailinskaya Depression)

Учёные записки Казанского университета: Серия Естественные науки
Conodonts from the Devonian–Carboniferous boundary deposits in two wells within the Sarailinskaya Depression of the Kama-Kinel Trough System were studied.
G. M. Sungatullina, V. V. Silantiev, D. N. Miftakhutdinova, A. F. Safarov, M. F. Validov, B. G. Ganiev, K. D. Shumatbaev, R. M. Khabipov   +7 more
doaj   +1 more source

Late Devonian (Famennian) phacopid trilobites from western Mongolia

Palaeobiodiversity and Palaeoenvironments, 2020
3
Crônier, C. (Catherine), Ariuntogos, M. (M.), Königshof, P. (P.), Waters, J.A. (J. A.), Carmichael, S. (S.)   +4 more
openaire   +4 more sources

Geological structure features of Menzelinsky, Timerovsky and Olginsky fields of the Republic of Tatarstan as a result of their genetic nature

Georesursy, 2018
The Menzelinsky, Timerovsky and Olginsky fields are located in the northeast of the Republic of Tatarstan and are associated with uplifts, sharply pronounced along the Tulskian surface of the Lower Carboniferous.
N.V. Nefyodov, V.B. Karpov, Yu.M. Arefiev,, A.V. Kalmykov, , G.A. Nikiforov   +4 more
doaj   +1 more source

New finds of fishes in the lower uppermost Famennian (Upper Devonian) of Сentral Russia and habitats of the Khovanshchinian vertebrate assemblages [PDF]

Estonian Journal of Earth Sciences, 2018
New vertebrate finds from the Khovanshchinian Regional Stage (lower uppermost Famennian, Upper Devonian) made an important contribution to our knowledge of the composition and distribution of vertebrate assemblages in Central Russia.
Oleg A. Lebedev, Galina V. Zakharenko, Vladimir V. Silantiev, Irina O. Evdokimova   +3 more
doaj   +1 more source

Fish assemblages from the Middle–Upper Devonian of the Middle Urals, Russia

Учёные записки Казанского университета: Серия Естественные науки, 2022
New assemblages of diverse fishes from the Givetian–Famennian were described in six sections in the Middle Urals: Pokrovskoe, Baronskaya, Sulem, Pershino, Yokva, and Vilva.
A.O. Ivanov
doaj   +1 more source

Early evolutionary history of the seed

Biological Reviews, Volume 101, Issue 3, Page 1511-1553, June 2026.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

ABOUT STRATIFICATION FAMENNIAN DEPOSITS SOUTH TIMAN

Oil and Gas Business, 2015
First Izhma Suite was selected for the South Timan in 1930 N. N. Tikhonovich in the study of oil deposits of the upper Devonian. Part of this Suite, they had included a wide range of rocks exposed on the right Bank of the r. Izhma. Later D. C. Obruchev (1958) as part of the Suite rocks have been identified the remains of testaceous fish Bothriolepis ...
openaire   +2 more sources

Sections in the western slope of the south urals perspective for the choice of the famennian regional boundary stratotype point

Литосфера, 2015
The Bol’shaya Barma, Akkyr, Ryauzyak and Kuk-Karauk sections in the western slope of the South Urals are considered to be perspective sections for the identification of Famennian Regional Boundary Stratotype Point (RBSP).
R. Ch. Tagarieva, A. G. Mizens
doaj   +2 more sources