Results 1 to 10 of about 59,970 (323)

A Window onto the Eocene (Cenozoic): The Palaeontological Record of the Sobrarbe-Pirineos UNESCO Global Geopark (Huesca, Aragon, Spain) [PDF]

open access: yesGeoconservation Research, 2021
The Sobrarbe-Pirineos UNESCO Global Geopark, located in the Central Pyrenees, is a region of remarkable geodiversity that includes extensive Eocene fossil-bearing sites and constitutes an important archive of paleobiodiversity.
Jose Canudo   +11 more
doaj   +1 more source

Investigating bio-events and time expansion of Calcareous nannofossils in the upper part of the Gurpi Formation and lower part of the Pabdeh Formation, northwestern Shiraz [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2020
In this study, calcareous nannofossils are investigated in the upper part of the Gurpi Formation and lower part of the Pabdeh Formation at the Par-e Nobar section located in the northwest of Shiraz. The thickness of the studied section is about 41 m. The
Saeedeh Senemari, Behzad Saeedi razavi
doaj   +1 more source

Multispecies leatherback turtle assemblage from the Oligocene Chandler Bridge and Ashley formations of South Carolina, USA [PDF]

open access: yesActa Palaeontologica Polonica, 2020
Paleogene dermochelyid species richness far exceeded that of today. Leatherback sea turtles were most species rich in the Paleogene, but their richness declined sharply during the Neogene with only one species existing today, Dermochelys coriacea.
Bailey R. Fallon   +1 more
doaj   +1 more source

PALEONTOLOGY AND PALEOGEOGRAPHY OF THE TETHYAN EARLY PALEOGENE ROTALIID BENTHIC FORAMINIFERAL PAKISTANIAN GENUS ORNATANOMALINA AND OTHER RELATED GENERA [PDF]

open access: yesEarth Sciences Pakistan, 2021
Six Early Paleogene small Rotaliid benthic foraminiferal species of the genus Ornatanomalina Haque are common in Pakistan and some of them are recorded from some localities in the Southern Tethys (Iraq, Qatar, United Arab Emirates, Nigeria), as well as ...
Haidar Salim Anan
doaj   +1 more source

The rise and demise of the Paleogene Central Tibetan Valley

open access: yesScience Advances, 2022
Reconstructing the Paleogene topography and climate of central Tibet informs understanding of collisional tectonic mechanisms and their links to climate and biodiversity.
Zhongyu Xiong   +15 more
semanticscholar   +1 more source

New evidence for the antiquity of Desmostylus (Desmostylia) from the Skooner Gulch Formation of California

open access: yesRoyal Society Open Science, 2023
Desmostylus is an extinct marine mammal genus that belongs to Desmostylia, a clade of extinct herbivorous mammals. While desmostylian remains are widely reported from Paleogene and Neogene marine strata of the North Pacific Rim, occurrences of the genus ...
Kumiko Matsui, Nicholas D. Pyenson
doaj   +1 more source

Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays

open access: yesScience, 2023
The Cretaceous-Paleogene event was the last mass extinction event, yet its impact and long-term effects on species-level marine vertebrate diversity remain largely uncharacterized.
G. Guinot, F. Condamine
semanticscholar   +1 more source

Study on Sedimentary Facies and Reservoir Characteristics of Paleogene Sandstone in Yingmaili Block, Tarim Basin

open access: yesGeofluids, 2022
Block Yingmai 7 is structurally located in the western segment of the southern margin of the Kuqa Depression in the Tarim Basin. In the foreland basin, huge continental Mesozoic and Cenozoic strata have been deposited.
Hanlie Cheng, J. Wei, Zhaoyuan Cheng
semanticscholar   +1 more source

Linking source and sink: The timing of deposition of Paleogene syntectonic strata in Central Asia

open access: yesGeology, 2023
Determining the age of siliciclastic continental sequences in the absence of comprehensive biostratigraphy or radiometric dating of geological markers (e.g., volcanic layers) is inherently challenging. This issue is well exemplified in the current debate
Feng Cheng   +5 more
semanticscholar   +1 more source

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