Results 151 to 160 of about 14,031 (243)

Dispersal and delimitation: Phylogenomics of Connaraceae prompts revised generic delimitation in Cnestideae and reveals global biogeographic patterns

TAXON, Volume 75, Issue 2, April 2026.
Abstract The tempo and mode of assembly of the world's most diverse, tropical floras remain poorly known. Evolutionary relationships within pantropical plant clades such as Connaraceae (Oxalidales, ca. 220 species) offer an opportunity to address this issue.
Serafin J.R. Streiff, Jurriaan M. de Vos
wiley   +1 more source

Mercury's Tectonic and Geodynamic History: 2. Contribution of Membrane–Flexural Strains to the Tectonic Record

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Previous analyses of Mercury's tectonic record have arrived at widely varying amounts of global contraction. Contraction also varies spatially, with some regions displaying a near‐zero record of contraction. Here, we investigate the contribution of membrane–flexural strain from lithosphere loading to the tectonic record.
A. Broquet, J. C. Andrews‐Hanna
wiley   +1 more source

Growth and reworking of freshwater microbially‐mediated carbonates in wind‐stressed lake margins (Lago Sarmiento, Southern Patagonia)

Sedimentology, Volume 73, Issue 3, Page 706-741, April 2026.
ABSTRACT Understanding the biotic and abiotic influences on the deposition and diagenesis of recent microbial carbonates is crucial for addressing the environmental and ecological significance of ancient organosedimentary structures. This study investigates these factors and their expression in the microstructure of Holocene tufa thrombolites from a ...
Paulo Quezada, Mauricio Calderón, Anelize Bahniuk, Carolina Henríquez, Tatiana Stepanenko, José Pérez‐Donoso, Nicolás Bruna, Larissa Santos, Guilherme Fedalto, Luis Mancini, Leonardo Fadel Cury   +10 more
wiley   +1 more source

<i>Prototaxites</i> fossils are structurally and chemically distinct from extinct and extant Fungi. [PDF]

Sci Adv
Loron CC, Cooper LM, McMahon S, Jordan SF, Gromov AV, Humpage M, Rodgers N, Pichevin L, Vondracek H, Alexander R, Rodriguez Dzul E, Brasier AT, Krings M, Hetherington AJ.   +13 more
europepmc   +1 more source

Two‐Stage Dolomite Formation in Carbonate Platforms Revealed by Carbonate Clumped Isotope Thermometry

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The “dolomite problem” refers to the scarcity of dolomite in Cenozoic marine environments compared with its abundance in earlier strata. This discrepancy has been attributed to changes in marine environments or to insufficient thermal maturity required for dolomite formation.
Y. Levenson, J. M. Eiler, E. Wurgaft, N. Neagu, Y. Ebert, U. Ryb   +5 more
wiley   +1 more source

Detection of traces of calcium oxalate druses in fossil leaves of angiosperms and gymnosperms from different sites and geological periods. [PDF]

PLoS One
Malekhosseini M, Ensikat HJ, McCoy VE, Wappler T, Rust J.   +4 more
europepmc   +1 more source

Fossil DNA [PDF]

Current Biology, 2000
openaire   +2 more sources

Electron and focused ion beam microscopy of fossilized Albertosaurus sarcophagus (Dinosauria: Theropoda) bone reveals nano to microscale features. [PDF]

Sci Rep
Williams A, Schumann D, Mallon JC, Phaneuf MW, Bassim N, Grandfield K.   +5 more
europepmc   +1 more source

Mineralization Controls Informative Biomarker Preservation Associated With Soft Part Fossilization in Deep Time. [PDF]

Geobiology
Tripp M, Wiemann J, Brosnan L, Rickard WDA, Vajda V, Böttcher ME, Greenwood PF, Grice K.   +7 more
europepmc   +1 more source

Skeletal ossification of Middle Triassic pachypleurosaur <i>Keichousaurus hui</i> (Reptilia: Sauropterygia) revealed by zinc distribution. [PDF]

PeerJ
Wang YN, Jiang DY, Motani R, Yao MT, Ji C, Sun ZY, Zhou M.   +6 more
europepmc   +1 more source