Results 71 to 80 of about 175,013 (252)

Molecular phylogeny and historical biogeography of the neotropical swarm-founding social wasp genus Synoeca (Hymenoptera: Vespidae). [PDF]

open access: yesPLoS ONE, 2015
The Neotropical Region harbors high biodiversity and many studies on mammals, reptiles, amphibians and avifauna have investigated the causes for this pattern. However, there is a paucity of such studies that focus on Neotropical insect groups. Synoeca de
Rodolpho Santos Telles Menezes   +4 more
doaj   +1 more source

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

open access: yesThe Anatomical Record, Volume 309, Issue 8, Page 2100-2123, August 2026.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou   +3 more
wiley   +1 more source

Vegetation context and climatic limits of the Early Pleistocene hominin dispersal in Europe

open access: yes, 2010
The vegetation and the climatic context in which the first hominins entered and dispersed in Europe during the Early Pleistocene are reconstructed, using literature review and a new climatic simulation. Both in situ fauna and in situ pollen at the twelve
Mikolajewicz, U   +5 more
core   +1 more source

Líneas de crecimiento en el esmalte dentario. Aplicación a los homínidos del plio-pleistoceno

open access: yesRevista Argentina de Antropología Biológica, 2010
RESUMEN: El análisis de la microestructura del esmalte lanzó nuevamente el debate sobre el desarrollo dentario de los homínidos del Plio-Pleistoceno.
Fernando V. Ramírez Rossi
doaj   +2 more sources

Tracing methane sources in shallow waters of the North Sea: Biogenic signatures and hydrocarbon transport near abandoned wells

open access: yesLimnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Numerous abandoned wells in the North Sea may provide gas, particularly methane (CH4), migration pathways by penetrating shallow, biogenic gas accumulations. However, related sampling campaigns have been largely contradictory and lack a substantial database. Research cruise MSM98 targeted the abandoned wells B18‐1, DOK 1‐X, B11‐2, THOR and D‐1
Katja U. Heeschen   +4 more
wiley   +1 more source

Plio-Pleistocene Biomarker and Pollen Dataset from IODP Site 361-U1478

open access: yes, 2020
Biomarker and pollen data for IODP Site U1478 spanning the Plio-Pleistocene (4 to 1.8 Ma). Organic geochemical data includes the hydrogen isotopic composition of leaf waxes (dDwax, ‰), corrected for changes in ice volume and used to reconstruct ...
Castañeda, Isla S   +10 more
core   +1 more source

Early hominin speciation at the Plio/Pleistocene transition

open access: yesHOMO, 2003
Over the last half-decade or so, there has been an explosion in the recognition of hominin genera and species. We now have the late Miocene genera Orrorin and Sahelanthropus, the mid Pliocene genus Kenyanthropus, three new Pliocene species of Australopithecus (A. anamensis, A. garhi and A. bahrelghazali) and a sub species of Ardipithecus (Ar.
openaire   +3 more sources

Neogene Stable Carbon Isotopic Evolution of the Atmosphere and Low‐Latitude Surface Ocean

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract We reconstruct the stable carbon isotopic composition of Neogene surface ocean dissolved inorganic carbon (δ13CDIC) and atmospheric CO2 (δ13CATM) to serve as input for carbon cycle modeling and proxy‐related studies. The largely observation‐based δ13CDIC reconstructions are inferred from Neogene planktic foraminifer carbonate δ13C records with
J. A. van Dam   +2 more
wiley   +1 more source

Spatial and Temporal Distribution of Salt‐ and Shale‐Detached Contractional Deformation, Mexican Northwestern Gulf of Mexico

open access: yesTectonics, Volume 45, Issue 7, July 2026.
Abstract In the northwestern Gulf of Mexico, gravity‐driven contractional deformation is recorded across the Salina del Bravo, the Perdido and Peripheral fold belts, and the Mexican Cordilleras. Integrating seismic interpretation, structural mapping, and analysis, we examine the spatial and temporal partitioning of shortening above three principal ...
F. A. Rodriguez‐Roa   +2 more
wiley   +1 more source

Steppes, savannahs, forests and phytodiversity reservoirs during the Pleistocene in the Iberian Peninsula

open access: yes, 2010
A palaeobotanical analysis of the Pleistocene floras and vegetation in the Iberian Peninsula shows the existence of patched landscapes with Pinus woodlands, deciduous and mixed forests, parklands (savannah-like), shrublands, steppes and grasslands ...
Valero-Garcésa, B   +28 more
core   +1 more source

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