Results 111 to 120 of about 44,585 (300)

A terrestrial snake from the lower Eocene of the mid-Atlantic region (Nanjemoy Formation, Virginia) of North America

Acta Palaeontologica Polonica
We report on the oldest vertebra of a terrestrial snake from the Paleogene of eastern North America. The nearly complete trunk vertebra was recovered from the Eocene Nanjemoy Formation of Virginia and is referred to Constrictores, the clade including ...
Adam C. Pritchard, Jacob A. Mccartney, Georgios L. Georgalis, Krister T. Smith   +3 more
doaj   +1 more source

Post Cretaceous/Paleogene boundary recovery of the deep marine ecosystem recorded by benthic foraminiferal morphogroups

Acta Palaeontologica Polonica
The uppermost 2 meters of the Maastrichtian Scaglia Rossa Fm. (Gubbio, Italy) record a notable change in the proportions of morphogroups of deep-water agglutinated foraminifera beginning about 1.4 m below the boundary, where we observe a gradual decrease
Michael A. Kaminski, Syouma Hikmahtiar, Claudia G. Cetean   +2 more
doaj   +1 more source

Author response for "Development of an incipient Paleogene topography between the present‐day Eastern Andean Plateau (Puna) and the Eastern Cordillera, southern Central Andes, NW Argentina"

, 2020
Carolina Montero‐López, Fernando Hongn, Romina Lucrecia López Steinmetz, Alejandro Aramayo, Heiko Pingel, Manfred R. Strecker, John M. Cottle, Carlos Bianchi   +7 more
openalex   +1 more source

Development characteristics and controlling factors of fractures in deep-buried tight oil reservoirs of the 3rd member of Paleogene Hetaoyuan Formation in southeast An'peng area, Nanxiang Basin

Shiyou shiyan dizhi
To elucidate the development patterns and influencing factors of natural fractures in deep-buried tight oil reservoirs, a comprehensive evaluation was conducted using a large amount of core samples, thin section, physical property data, imaging and ...
Zheng HUANG, Yongqiang ZHOU, Zixiao HE, Ming LI, Tao YANG, Su WANG, Qiang LI, Ying ZHAO, Shuai YIN   +8 more
doaj   +1 more source

Geochemical investigation of the mixed Máriahalom vertebrate fauna at the Paleogene–Neogene boundary in the Central Paratethys: environmental conditions and age constrain [PDF]

, 2023
László Kocsis, Márton Rabi, Alex Ulianov, Anna Cipriani, Izabella M. Farkas, Gábor Botfalvai   +5 more
openalex   +1 more source

Remarks on the type locality and current status of the foraminiferal species Rzehakina epigona (Rzehak, 1895) [PDF]

, 2001
A likely topotype locality is proposed for Rzehakina epigona. As the type specimen of Silicina epigona Rzehak, 1895 is assumed to be lost, we undertook a search for new material in the type area, Zdounky village in Moravia. A single locality provided a
Bubik, M., Kaminski, M.A.
core  

Reply to comment by Z. Yi et al. on “Remagnetization of the Paleogene Tibetan Himalayan carbonate rocks in the Gamba area: Implications for reconstructing the lower plate in the India‐Asia collision” [PDF]

, 2017
Wentao Huang, Peter C. Lippert, Mike Jackson, Mark J. Dekkers, Yang Zhang, Juan Li, Zhaojie Guo, Paul Kapp, Douwe J.J. van Hinsbergen   +8 more
openalex   +1 more source

Meso-Cenozoic tectonics of the Central Kyrgyz Tien Shan (Central Asia), based on apatite fission track thermochronology. [PDF]

, 2008
Apatite fission track thermochronology on the Kyrgyz Tien Shan basement revealed a polyphased thermal history of the study-area.
Glorie, Stijn
core  

Seismic Stratigraphy and Tectonic Evolution of the Forearc Georgia Basin (Upper Cretaceous–Miocene), Canada and USA, With Implications for CO2 Sequestration

Basin Research, Volume 38, Issue 3, May–June 2026.
2D seismic and well data reveal multi‐phase basin filling in the Whatcom Sub‐Basin shaped by syn‐depositional tectonism. An Eocene transition from forearc basin to forearc depression corresponds to decreasing normal‐fault density and throw, both upsection and eastward. Paleogene–Neogene strata are the best CO2 storage targets.
Francyne Bochi do Amarante, Shahin E. Dashtgard, Maziyar Nazemi, Andrew J. Calvert, H. Daniel Gibson   +4 more
wiley   +1 more source

Fit for purpose? Analysis of the relationship between skull, beak shape and feeding ecology in Psittaciformes

Journal of Anatomy, Volume 248, Issue 5, Page 873-887, May 2026.
Psittaciformes exhibit high levels of morphological diversity, particularly in skull and beak structure, previously linked to diet and body size. Although there were some levels of significance between diet and beak shape, body mass was a much stronger co‐variate. Diet is not determining beak shape within the clade.
Shannon L. Harrison, Gregory P. Sutton, D. Charles Deeming   +2 more
wiley   +1 more source