Results 221 to 230 of about 147,685 (356)

Origin of Texas Red Beds [PDF]

, 1916
Baker, Charles Laurence
core  

American Permian vertebrates, by Samuel W. Williston ...

, 1911
S. W. Williston
openalex   +2 more sources

On a Permian Conglomerate Bed at Markington [PDF]

, 1891
J. Stanley Tute
openalex   +1 more source

Spermatophyta Molecular Clock: Time Drift and Recent Acceleration

Plant-Environment Interactions, Volume 6, Issue 5, October 2025.
Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Soichi Osozawa
wiley   +1 more source

Repeated occurrences of marine anoxia under high atmospheric O₂ and icehouse conditions. [PDF]

Proc Natl Acad Sci U S A
Chen J, Li S, Zhang S, Isson T, Dahl TW, Planavsky NJ, Zhang F, Wang XD, Shen SZ, Montañez IP.   +9 more
europepmc   +1 more source

Fossils of the British Islands stratigraphically and zoologically arranged. Vol. 1. Palæozoic comprising the Cambrian, Silurian, Devonian, Carboniferous, and Permian species, with supplementary appendix brought down to the end of 1886

, 1888
R. Etheridge
openalex   +2 more sources

Reconstructing Early Cenozoic Paleodrainage and Tectonic Evolution in the Southeastern Tibetan Plateau: Evidence From Detrital Zircon and Tourmaline Provenance

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract The Paleogene sedimentary basins of southeastern Tibet record sediment dispersal patterns associated with crustal deformation during the early stages of the India–Asia collision. We present detrital zircon U–Pb geochronology, tourmaline geochemistry, and petrographic data from the Gonjo and Mangkang basins that suggest a reginal interconnected
Yuquan Jiang, Linlin Li, Yingying Li, Xiangjiang Yu, Zhongtai He, Dewen Li   +5 more
wiley   +1 more source

Geochemical Characteristics and Indicative Significance of Rare Earth Elements in the Late Permian Coal of Tucheng Mine, Guizhou Province. [PDF]

ACS Omega
Li Y, Zhu Y, Yang Z, Song Z.
europepmc   +1 more source

High abundance of xanthones and dibenzofurans in a late Permian sediment [PDF]

, 2003
Gilmour, Iain, Sephton, Mark A., Watson, Jonathan S.   +2 more
core  

The Upper Permian Mizukoshi Formation

, 1958
Juichi Yanagida
openalex   +2 more sources