Results 91 to 100 of about 34,987 (228)

Climate Sensitivity, Sea Level, and Atmospheric CO2 [PDF]

, 2013
Cenozoic temperature, sea level and CO2 co-variations provide insights into climate sensitivity to external forcings and sea level sensitivity to climate change.
Hansen, James, Kharecha, Pushker, Russell, Gary, Sato, Makiko   +3 more
core   +2 more sources

Paleoenvironmental Stasis for the Bioturbating Community During the Paleocene‐Eocene Thermal Maximum at the Southern Iberian Margin

Geobiology, Volume 24, Issue 3, May/June 2026.
ABSTRACT During the Paleocene‐Eocene Thermal Maximum (PETM), there was an increase in global temperatures and emissions of isotopically depleted carbon, resulting in a negative carbon isotope excursion (CIE). This climatic event caused a widespread ocean deoxygenation, leading to substantial biotic turnover.
Olmo Miguez‐Salas, Francisco J. Rodríguez‐Tovar, Victoriano Pujalte   +2 more
wiley   +1 more source

Deep Groundwater Total Dissolved Solids Mapping in the Dakota Group, Williston Basin, USA

Groundwater, Volume 64, Issue 3, Page 335-349, May/June 2026.
Abstract Growing concern about the quantity of available freshwater around the world has led to interest in surveying groundwater total dissolved solids (TDS) below water well depths. Deep TDS has not been systematically mapped, and there is much to learn about the distribution and controls on deeper groundwater. In sedimentary basins across the United
Michael J. Stephens, Bennett E. Hoogenboom, Lyndsay B. Ball, Will Chang   +3 more
wiley   +1 more source

Assessing the Duration of the Paleocene‐Eocene Thermal Maximum [PDF]

Geophysical Research Letters
Abstract The Paleocene‐Eocene Thermal Maximum (PETM) was a climate/carbon cycle perturbation recognized in stable carbon isotope (δ 13 C) records with a negative carbon isotope excursion (CIE). The PETM CIE termination has been associated with a δ 13
Victor A. Piedrahita, David Heslop, Andrew P. Roberts, Eelco J. Rohling, Simone Galeotti, Fabio Florindo, Jinhua Li   +6 more
openaire   +3 more sources

Plastid and nuclear phylogenomics of Cyphostemma (Vitaceae) provide new insights into genome size evolution across sub‐Saharan Africa

Journal of Integrative Plant Biology, Volume 68, Issue 5, Page 1399-1420, May 2026.
Some African Cyphostemma species evolved much larger genomes as they adapted to dry, rocky habitats. These expansions are linked to succulent traits and specialization on nutrient‐rich limestone outcrops. The findings show how climate‐driven aridification shaped plant evolution and highlight broader genome‐environment patterns across flowering plants ...
Rindra M. Ranaivoson, Romer N. Rabarijaona, Jin‐Ren Yu, Yi‐Chen You, Russell L. Barrett, Ju Zhou, Bing Liu, Wyckliffe Omondi Omollo, Chuan‐Yu Du, Da‐Ming Zhang, Mijoro Rakotoarinivo, Jie Cheng, Chao‐Bin Li, Yang Dong, Ilia J. Leitch, Alexandre Antonelli, Jun Wen, Zhi‐Duan Chen, Li‐Min Lu   +18 more
wiley   +1 more source

Novel insect leaf-mining after the end-Cretaceous extinction and the demise of cretaceous leaf miners, Great Plains, USA.

PLoS ONE, 2014
Plant and associated insect-damage diversity in the western U.S.A. decreased significantly at the Cretaceous-Paleogene (K-Pg) boundary and remained low until the late Paleocene. However, the Mexican Hat locality (ca.
Michael P Donovan, Peter Wilf, Conrad C Labandeira, Kirk R Johnson, Daniel J Peppe   +4 more
doaj   +1 more source

Morphology, affinities and phytogeographic history of Porosia Hickey in the Cretaceous and Paleocene of North America and Asia

Acta Palaeobotanica, 2014
Morphology and anatomy of the extinct angiosperm fruit, Porosia verrucosa (Lesqueruex) Hickey, are documented in detail based on various modes of preservation including molds, casts, and permineralizations from more than seventy localities in the late ...
Manchester Steven R., Kodrul Tatyana M.
doaj   +1 more source

From living to fossil: ancestral state reconstruction of leaf architecture in extant Lauraceae and its relevance for the fossil record

Palaeontology, Volume 69, Issue 3, May/June 2026.
Abstract Lauraceae are a tropical–subtropical angiosperm family that exhibit significant diversity and a rich fossil record, primarily of leaves found worldwide from the Cretaceous to the present. However, the taxonomic placement of many fossil leaves remains uncertain because of morphological convergence and limited variation in leaf characters among ...
Marco A. Rubalcava‐Knoth, Angélica Quintanar‐Castillo, Ana L. Hernández‐Damián, Sergio R. S. Cevallos‐Ferriz   +3 more
wiley   +1 more source

UPPER CRETACEOUS AND PALEOCENE IN ZANSKAR RANGE (NW Himalaya)

Rivista Italiana di Paleontologia e Stratigrafia, 2020
A detailed Upper Cretaceous/Paleocene stratigraphic section was measured from the Spanboth Chu Valley, High Himalaya Nappes. Placement Of the Cretaceous—Tertiary boundary was refined, but some uncertitudes still remain because of poor exposure in this ...
MAURIZIO GAETANI, ALDA NICORA, ISABELLA PREMOLI SILVA, ELISABETTA FOIS, EDUARDO GARZANTI , ANDREA TINTORI   +5 more
doaj  

Plate motions recorded in tectonostratigraphic terranes of the Franciscan Complex and evolution of the Mendocino triple junction, northwestern California [PDF]

, 1994
The Mendocino triple junction area of northern California is underlain by the Coastal belt of the Franciscan complex, flanked on the east by the Central and Eastern belts of the Franciscan Complex.
Frederiksen, NO, Harbert, WP, McCulloch, DS, McLaughlin, RJ, Sliter, WV   +4 more
core   +1 more source