Results 231 to 240 of about 3,730,581 (317)

Reconstructing Environmental and Microbial Ecosystem Changes Across the Permian–Triassic Mass Extinction at Lusitaniadalen, Svalbard

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract The Permian–Triassic environmental crisis triggered fundamental changes in marine ecosystems, culminating in the most severe biodiversity crisis of the Phanerozoic. Yet, the environmental and geochemical conditions governing the crisis and ecosystem recovery remain debated.
S. Z. Buchwald   +17 more
wiley   +1 more source

Best of United European Gastroenterology Week 2025

open access: yes
United European Gastroenterology Journal, Volume 14, Issue 1, February 2026.
Iuliana Nenu   +3 more
wiley   +1 more source

Timing and Style of Tectonic Assembly and Exhumation of the McHugh Complex Within the Chugach‐Kodiak Accretionary Wedge, Alaska

open access: yesTectonics, Volume 45, Issue 2, February 2026.
Abstract Accretionary complexes are key archives of subduction zone processes, preserving records of forearc growth, deformation, and tectonic reorganization. The Chugach–Kodiak accretionary complex of southern Alaska records Jurassic to Cretaceous underplating at shallow to intermediate subduction conditions. The McHugh Complex, an imbricated sequence
Ismay Vénice Akker   +9 more
wiley   +1 more source

Phylogenetic reconciliation provides new insights into the evolutionary diversification of the glutamine synthetase gene family in seed plants

open access: yesThe FEBS Journal, Volume 293, Issue 3, Page 859-877, February 2026.
Phylogenetic analyses of glutamine synthetase (GS) in seed plants revealed that all three major evolutionary lineages (GS2, GS1a, and GS1b) must have been present in the common ancestor, with GS2 being the first lineage to diverge. Unlike GS1b, GS1a and GS2 are usually single‐copy genes, even though they underwent duplications that resulted in ...
Elena Aledo   +3 more
wiley   +1 more source

Mandibular and dental characteristics of Late Triassic mammaliaform Haramiyavia and their ramifications for basal mammal evolution

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2015
Zhe‐Xi Luo   +4 more
semanticscholar   +1 more source

Gondwanan Origin of Bark and Ambrosia Beetles and Their Rapid Worldwide Diversification During the Cretaceous

open access: yesJournal of Biogeography, Volume 53, Issue 2, February 2026.
ABSTRACT Aim It is not trivial to estimate the relative contributions of dispersal, vicariance, and range contraction in explaining the present‐day distribution of ancient clades. In this study, we aim to infer the historical biogeography of bark and ambrosia beetles using a genus‐level time‐calibrated molecular phylogeny that encompasses 70% of all ...
Jules Ferreira   +4 more
wiley   +1 more source

The regional evolution of a dryland fluvio‐aeolian and lacustrine succession in response to allocyclic forcing: insights from the Early Permian Cutler Group, Utah, USA

open access: yesSedimentology, Volume 73, Issue 2, Page 297-354, February 2026.
ABSTRACT Preserved allocyclic signatures in the rock record often reflect basin‐scale climatic variability and serve as key proxies for correlating ancient dryland successions. The notion of climate cyclicity, however, remains largely untested on regionally constrained, outcrop‐calibrated studies.
Oliver Button   +4 more
wiley   +1 more source

Late Triassic paleolatitude of the Qiangtang block: Implications for the closure of the Paleo-Tethys Ocean

open access: yes, 2015
Peiping Song   +7 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy