Results 61 to 70 of about 5,375 (265)

New Zealand Geological Timescale 2025

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
New Zealand Geological Timescale 2025 (NZGT 2025) is the first comprehensive update and revision of the New Zealand Geological Timescale in a decade. The criteria used to establish age ranges of New Zealand Stages within the NZGT have been reviewed, calibrated, and revised where required against the 2023/04 International Chronostratigraphic Chart and ...
Christopher D. Clowes   +13 more
wiley   +1 more source

A mechanism for brief glacial episodes in the Mesozoic greenhouse [PDF]

open access: yes, 2011
International audienceThe Mesozoic, perhaps the longest period of warmth during the Phanerozoic Earth history, has been repeatedly affected by short-lived cold interludes lasting about one million years.
Brigaud, Benjamin   +7 more
core   +2 more sources

Tectonostratigraphic Evolution of the Guyana Basin: Implications for Sediment Routing and Slope Stability

open access: yesBasin Research, Volume 38, Issue 2, March/April 2026.
Seismic profile across the Guyana Basin showing the main tectonostratigraphic units and an order‐of‐magnitude increase in sedimentation rates since the Middle Miocene corresponding with the onset of sedimentation dominated by mass transport deposits. ABSTRACT The Guyana Basin developed in an evolving tectonic setting, but a lack of subsurface data has ...
Deron Saul, Uisdean Nicholson
wiley   +1 more source

MIDDLE JURASSIC NAUTILOIDEA FROM WESTERN FRANCE

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2004
The Middle Jurassic shelf margin limestones and marly limestones of Western France yield quite numerous Nautilida. This record is here described for the first time in detail, nine genera and more than forty species, whose range rarely exceeds one or two ...
PATRICK BRANGER
doaj   +1 more source

The early origin of Iguanodontia: new insights into the macroevolution, diversity and biogeography of the clade

open access: yesPalaeontology, Volume 69, Issue 2, 2026.
Abstract Iguanodontia (Dinosauria, Ornithischia) is a speciose group of herbivorous dinosaurs that include the famous genus Iguanodon, one of foundational members of the clade Dinosauria. Despite their very long history of research, several aspects of their systematic relationships and their evolutionary history remain somewhat nebulous.
Filippo Maria Rotatori   +3 more
wiley   +1 more source

Filling the Corallian gap: new information on Late Jurassic marine reptile faunas from England [PDF]

open access: yes, 2018
Two of the best known Mesozoic marine reptile assemblages can be found in units deposited in the Jurassic Sub-Boreal Seaway of the UK: the late Middle Jurassic Oxford Clay Formation (OCF) and Late Jurassic Kimmeridge Clay Formation (KCF). They record two
Brusatte, Stephen   +2 more
core   +2 more sources

From Quarries to Urban Construction Sites: Middle‐Late Mesozoic Limestones in the Public Architecture of Roman Verona, Italy

open access: yesGeoarchaeology, Volume 41, Issue 1, January/February 2026.
ABSTRACT Numerous buildings, monuments, and infrastructural works in Verona were constructed during the Roman period using stone, a material abundantly available from quarrying areas located relatively close to the city. Petrographic investigations conducted by Transmitted Polarized Light Optical Microscopy (TPL‐OM) and complemented by colorimetric ...
Eliana Bridi   +3 more
wiley   +1 more source

CALLOVIAN RADIOLARIANS FROM THE LOWERMOST CALCARE SELCIFERO DI FONZASO AT PONTE SERRA (TRENTO PLATEAU, SOUTHERN ALPS, ITALY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2008
This paper deals with radiolarian biostratigraphy of the Calcare Selcifero di Fonzaso at the type-section of Ponte Serra (Southern Alps, Italy). The Ponte Serra section is located on the easternmost part of the Trento Plateau and represents an early ...
PAOLA BECCARO   +3 more
doaj   +1 more source

“Canaralele din Portul Hârșova”- Paleontological importance of the most representative Oxfordian geosite in Central Dobrogea, Romania [PDF]

open access: yesGeoconservation Research, 2019
“Canaralele din Portul Hârșova” geosite is integrated into ‘Canaralele Dunarii’ Natura 2000 site (ROSCI0022), and represents the northern part of the geologic profile in Jurassic deposits that is exposed along the Danube River valley between Hârșova and ...
Delia-Georgeta Dumitraş   +3 more
doaj   +1 more source

Caenogastropods and heterobranch gastropods from the Hettangian deposits of Luxembourg: palaeobiogeography and Early Jurassic faunal recovery in the western Tethys

open access: yesPapers in Palaeontology, Volume 12, Issue 1, January/February 2026.
Abstract We describe the Hettangian Caenogastropoda and Heterobranchia of the Luxembourg Sandstone Formation, a wedge of clastic sediments deposited along the eastern margin of Paris Basin during the Early Jurassic. Five new genera and 11 new species are erected: Bourguetia bipartita sp. nov., Globularia delsatei sp. nov., Oonia feidtorum sp.
Stefano Monari   +3 more
wiley   +1 more source

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