Results 31 to 40 of about 115,566 (343)

New investigations of Upper Devonian wood from the north of the European part of Russia

Acta Palaeobotanica, 2020
The paper describes a continuation of our research on the distribution of archaeopteridalean plants in the north of the European part of the Russian Federation.
Anna Lyubarova, Sergey M. Snigirevsky
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

Evolution of leaf-form in land plants linked to atmospheric CO2 decline in the Late Palaeozoic era [PDF]

, 2001
The widespread appearance of megaphyll leaves, with their branched veins and planate form, did not occur until the close of the Devonian period at about 360 Myr ago.
AH Knoll, C. P. Osborne, CI Mora, D Edwards, D Edwards, D. J. Beerling, DJ Beerling, DJ Beerling, DJ Beerling, DJ Beerling, FI Woodward, G Bowes, GD Farquhar, GD Farquhar, JC McElwain, KJ Niklas, LA Martinelli, P Kenrick, PG Gensel, PG Gensel, PJ Schulte, PJ Valdes, PS Nobel, RA Berner, RA Berner, S Von Caemmerer, SG Hao, TJ Algeo, W Larcher, W Zimmermann, W. G. Chaloner, WG Chaloner, WG Chaloner   +32 more
core   +1 more source

The smallest known Devonian tetrapod shows unexpectedly derived features [PDF]

Royal Society Open Science, 2020
A new genus and species of Devonian tetrapod, Brittagnathus minutus gen. et sp. nov., is described from a single complete right lower jaw ramus recovered from the Acanthostega mass-death deposit in the upper part of the Britta Dal Formation (upper ...
Per E. Ahlberg, Jennifer A. Clack
doaj   +1 more source

The Early Devonian (Emsian) acrotretid microbrachiopod Opsiconidion minor Popov, 1981, from the Alaska/Yukon Territory border and Novaya Zemlya [PDF]

Estonian Journal of Earth Sciences, 2020
New records of the poorly known acrotretid (Biernatidae) microbrachiopod Opsiconidion minor Popov are described from middle Emsian strata of the Ogilvie Formation in east-central Alaska and the adjacent Yukon Territory, Canada, and compared with new ...
Lars E. Holmer, Robert B. Blodgett, Yue Liang, Zhifei Zhang   +3 more
doaj   +1 more source

Structural and Geochronological Constraints on Devonian Suprasubduction Tectonic Switching and Permian Collisional Dynamics in the Chinese Altai, Central Asia

Tectonics, 2019
Kinematic significance and time scales of geodynamic processes forming the Altai Orogenic Belt are addressed through structural and petrological analysis combined with zircon and monazite geochronology.
Yingde Jiang, K. Schulmann, Min Sun, R. Weinberg, P. Štípská, Pengfei Li, J. Zhang, Francis Chopin, Sheng Wang, X. Xia, W. Xiao   +10 more
semanticscholar   +1 more source

Polish Palaeobotany: 750 Million Years of Plant History as Revealed in a Century of Studies. Palaeozoic Macrofossils

Acta Societatis Botanicorum Poloniae, 2022
During the Palaeozoic Era, plants conquered the land and covered greater and greater areas from coastal lowlands to highlands. Palaeobotanical data based on macroremains from Polish Palaeozoic strata complete and enrich the picture of these processes ...
Grzegorz Pacyna, Maria Barbacka
doaj   +1 more source

On the Sensitivity of the Devonian Climate to Continental Configuration, Vegetation Cover, Orbital Configuration, CO 2 Concentration, and Insolation

Paleoceanography and Paleoclimatology, 2019
During the Devonian (419 to 359 million years ago), life on Earth witnessed decisive evolutionary breakthroughs, most prominently the colonization of land by vascular plants and vertebrates.
J. Brugger, M. Hofmann, S. Petri, G. Feulner   +3 more
semanticscholar   +1 more source

The fate of the homoctenids (Tentaculitoidea) during the Frasnian-Famennian mass extinction (Late Devonian) [PDF]

, 2006
The homoctenids (Tentaculitoidea) are small, conical-shelled marine animals which are amongst the most abundant and widespread of all Late Devonian fossils.
Alberti GKB, Babin C, Becker RT, Blumenstengel H, Bond DPG, Boueek B, Buggisch W, Dzik J, Farsan NM, Feist R, Fisher DW, Freyer G, Grabau AW, Hajlasz B, Hallam A, Jansen U, Klapper G, Lardeux H, Li YX, Li YX, Ludvigsen R, Lutke F, Lyashenko GP, Lyashenko GP, Lyashenko GP, Lyashenko GP, McLaren DJ, Morrow JR, Over DJ, Racki G, Racki G, Raup DM, Roemer FA, Ruchholz K, Sandberg CA, Sandberg CA, Sauerland U, Schindler E, Scotese CR, Sepkoski JJ, Sherrard K, Truyols-Massoni M, Tunnicliff SP, Walliser OH, Walliser OH, Weedon MJ, Yochelson EL, Zagora K, Zhang R   +48 more
core   +1 more source

The Devonian nekton revolution [PDF]

Lethaia, 2010
Klug, C., Kroger, B., Kiessling, W., Mullins, G.L., Servais, T., Frýda, J., Korn, D. & Turner, S. 2009: The Devonian nekton revolution. Lethaia, 10.1111/j.1502-3931.2009.00206.x Traditional analyses of Early Phanerozoic marine diversity at the genus level show an explosive radiation of marine life until the Late Ordovician, followed by a phase of ...
Klug, Christian, Kröger, Björn, Kiessling, Wolfgang, Mullins, Gary L, Servais, Thomas, Frýda, Jiří, Korn, Dieter, Turner, Susan   +7 more
openaire   +2 more sources