Zobrazeno 1 - 10
of 419
pro vyhledávání: '"Pg boundary"'
Publikováno v:
ARO-The Scientific Journal of Koya University, Vol 12, Iss 1 (2024)
The present study interprets the high resolution of the biostratigraphy across the Cretaceous/Paleogene (K/Pg) boundary from Sulaymaniyah, Kurdistan Region, and north-east Iraq, based on planktic foraminifera. The Dartw section was selected for this
Externí odkaz:
https://doaj.org/article/56e45e68f0d74ad886078dd5209e62d9
Autor:
Lawrence H. Tanner, Spencer G. Lucas
Publikováno v:
The Depositional Record, Vol 9, Iss 4, Pp 1131-1152 (2023)
Abstract The mass extinction at the Cretaceous–Palaeogene boundary is widely attributed to sudden and severe climate changes forced by bolide impact and/or flood basalt volcanism. In terrestrial depositional settings, these changes may potentially
Externí odkaz:
https://doaj.org/article/471d9b3638194db79eb76b1b98fba1f6
Autor:
Ganesh K. Jaganathan, Keith Berry
Publikováno v:
Seeds, Vol 2, Iss 3, Pp 309-317 (2023)
Physical dormancy (PY) due to a water-impermeable seed/fruit coat is one of the characteristic features of many species of Fabaceae; however, the timing and context of the evolution of this trait are poorly understood. In this investigation, fossil a
Externí odkaz:
https://doaj.org/article/158cd94f03bc42d495a8b2afdd4b22db
Publikováno v:
Netherlands Journal of Geosciences, Vol 103 (2024)
The Late Cretaceous was a time of blossoming teleost diversification that came to a sudden restriction and partial termination during the extinction event at the Cretaceous–Paleogene (K/Pg) boundary. Among the dominant and diverse Late Cretaceous t
Externí odkaz:
https://doaj.org/article/06564d4535fe4a1f9ded7f262fac2a65
Publikováno v:
Acta Palaeontologica Polonica, Vol 68, Iss 2, Pp 337-342 (2023)
The new “libelluloid” family Cordulibellulidae is described to accommodate a new genus and species Cordulibellula inopinata from the Eocene Green River Formation, Utah, USA. Even if its affinities remain somewhat uncertain because of the lack o
Externí odkaz:
https://doaj.org/article/c0367d07ac0540bc9458430d71f52a9d
Publikováno v:
Swiss Journal of Palaeontology, Vol 142, Iss 1, Pp 1-49 (2023)
Abstract From the upper Maastrichtian (Tarbur Fm.) and Paleocene of Iran, 20 species of scleractinian corals belonging to 17 genera and 14 families, and one species of the octocoral Heliopora are newly recorded. Furthermore, coral species previously
Externí odkaz:
https://doaj.org/article/36f6dbe3da5e4ad1921825200ceb3d28
Publikováno v:
Carbon Trends, Vol 13, Iss , Pp 100309- (2023)
The presence of fullerene C60 in the iridium-rich Cretaceous-Palaeogene (K-Pg) boundary layer from the Um-Sohryngkew river section of Meghalaya is reported here for the first time. Different analytical methods, including transmission electron microsc
Externí odkaz:
https://doaj.org/article/80ad55b70b6f4130924991740e5cde83
Autor:
Keith Berry, Ganesh K. Jaganathan
Publikováno v:
Acta Palaeobotanica, Vol 62, Iss 2, Pp 182-195 (2022)
Paleobotanists debate whether the Cretaceous/Paleogene boundary (KPB) event was selective. As the hypothesis that the KPB event selected for plants with fast-return leaf economic traits (e.g. deciduousness) has lost empirical support in recent invest
Externí odkaz:
https://doaj.org/article/1f140061bd1d4a95ba381a7e37c6f2e8
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.