Results 141 to 150 of about 35,431 (277)

Incomplete climate‐driven peripatric speciation in Moehringia sect. Moehringia (Caryophyllaceae) in the European Alps

American Journal of Botany, Volume 113, Issue 9, September 2026.
Abstract Premise The origin of endemic species in the European Alps is commonly attributed to the climatic oscillations of the Quaternary. Moehringia sect. Moehringia, with 12 of 15 species endemic to the Alps and mostly restricted to well‐known glacial refugia, is a prime system for investigating the diversification of a lineage originating in the ...
Joachim W. Kadereit, Kirra McLeod, Audie M. Putra, Gudrun Kadereit, Diego F. Morales‐Briones   +4 more
wiley   +1 more source

REFINED STRATIGRAPHICAL AND BIOCHRONOLOGICAL FRAMEWORK OF PALEOGENE SUCCESSIONS IN THE NORTHWEST ARABIAN PLATE

Rivista Italiana di Paleontologia e Stratigrafia
This study updates the lithostratigraphic and chronostratigraphic framework of the marine carbonate-dominated Paleogene strata of northwestern Saudi Arabia within the Sirhan–Turayf Basin by integrating detailed field observations and high-resolution ...
MOHAMMED H. ALJAHDALI, IBRAHIM M. GHANDOUR, MAHMOUD FARIS, RASHAD A. BANTAN, MAZEN M. ALSADDAH, KHALID M. ALRIZQI, BRIDGET WADE, RAMADAN M. EL-KAHAWY   +7 more
doaj   +1 more source

Austrocedrus from the Late Cretaceous of Antarctica and its implications for the early evolution of southern cypresses (Callitroideae, Cupressaceae)

American Journal of Botany, Volume 113, Issue 9, September 2026.
Abstract Premise The modern distribution of the southern cypresses, Callitroideae (Cupressaceae), reflects a classic Gondwanan distribution. The initial diversification of Callitroideae is estimated to have occurred during the Cretaceous, yet fossils from this period are rare, hampering our understanding of its early evolutionary history.
Kelly C. Pfeiler, Kelly K. S. Matsunaga, Ana Andruchow‐Colombo, Ari Iglesias, Selena Y. Smith, Brian A. Atkinson   +5 more
wiley   +1 more source

The relationship between form and function of the carnivore mandible

The Anatomical Record, Volume 309, Issue 9, Page 2487-2506, September 2026.
Abstract Dietary morphology diversified extensively in Carnivoraformes (living Carnivora and their stem relatives) during the Cenozoic (the last 66 million years) as they evolved to capture, handle, and process new animal and plant diets. We used 3D geometric morphometrics, mechanical advantage, and finite element analysis to test the evolutionary ...
Charles J. Salcido, P. David Polly
wiley   +1 more source

Sedimentology and geochemistry of the recent sediments of the river system on Hurd Peninsula, Livingston Island, Antarctica

The Depositional Record, Volume 12, Issue 4, September 2026.
This study investigates the sedimentology and geochemistry of recent sediments from ephemeral river systems on Hurd Peninsula, Livingston Island, Antarctica. These systems are important for understanding sedimentary and geochemical processes in unique polar environments.
Yakup Çelik, Merve Özyurt, Raif Kandemir   +2 more
wiley   +1 more source

Diagenetic evolution and geochemical controls on carbonate platform development in the Middle Eocene Jahrum Formation, Zagros Basin

The Depositional Record, Volume 12, Issue 4, September 2026.
Integrated petrographic, mineralogical and geochemical workflow for reconstructing the diagenetic evolution of the Middle Eocene Jahrum Formation in the Zagros Basin. The diagram illustrates the methodological framework combining field observations, laboratory analyses (XRD, SEM‐EDS, stable isotopes, cathodoluminescence), pyrite framboid geochemistry ...
Mehdi Baniasadi, Vahid Ahmadi, Mohammad Reza Esmaeilbeig, Pooria Kianoush   +3 more
wiley   +1 more source

IODP Proposal 626: "Cenozoic Equatorial Age Transect – Following the Palaeo-equator"

As the largest ocean, the Pacific is intricately linked to major changes in the global climate system that took place during the Cenozoic. Throughout the Cenozoic the Pacific plate has had a northward component.
Moore, T.C., Mitchell, N.C., Tauxe, L., Lyle, M.W., Backman, J., Pälike, H., Rea, D.K.   +6 more
core   +1 more source

Mitogenomic Insights Into the Population Structure and Demographic History of Tree Shrews (Tupaia belangeri) in China

Ecology and Evolution, Volume 16, Issue 9, September 2026.
Sample information and genetic landscape of the northern tree shrew. ABSTRACT The northern tree shrew (Tupaia belangeri) exhibits significant morphological and geographical variations, but its evolutionary history and subspecies boundaries remain controversial.
Tongtong Gu, Lijuan Cao, Dongjie Liu, Chengyao Yang, Zixin Lin, Rongxiang Mu, Wanlong Zhu   +6 more
wiley   +1 more source

The Caribbean “Oligocene” [PDF]

Geological Magazine, 1954
openaire   +1 more source

Larger foraminiferal and coralline algal benthic communities of Upper Eocene and Upper Oligocene carbonates: responses to different trophic resources.

, 2005
Trophic gradients in shallow water carbonate settings from Late Eocene to Late Oligocene are detected by using larger foraminiferal and coralline algal assemblages.
BASSI, Davide, NEBELSICK, James Henry
core