Results 61 to 70 of about 12,118 (234)

Tectonics, geology and origins of Te Riu‐a‐Māui / Zealandia

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 531-567, December 2025.
ABSTRACT Te Riu‐a‐Māui / Zealandia is a 95% submerged, five million square km southern hemisphere continent that includes the islands of New Zealand and New Caledonia. For the last 45 million years (Ma) Zealandia has been cut by the Pacific‐Australian plate boundary which today changes character from a west‐dipping subduction zone in the north to ...
Nick Mortimer
wiley   +1 more source

Ichnological discrimination of hemipelagic‐dominated slope versus basin‐floor mudstones: Insights from early Viséan successions of a distally steepened ramp, northern Iran

open access: yesThe Depositional Record, Volume 11, Issue 5, Page 1563-1595, November 2025.
This study integrates sedimentological and ichnological data to reveal the depositional processes and environmental conditions of deep‐water muddy gravity flows in the Mobarak Formation. It highlights distinct ichnocoenoses and bioturbation patterns, offering insights into basin‐floor versus slope mudstones and their implications for hydrocarbon ...
Aram Bayet‐Goll   +2 more
wiley   +1 more source

Digestive and appendicular soft-parts, with behavioural implications, in a large Ordovician trilobite from the Fezouata Lagerstätte, Morocco [PDF]

open access: yes, 2017
Trilobites were one of the most successful groups of marine arthropods during the Palaeozoic era, yet their soft-part anatomy is only known from a few exceptionally-preserved specimens found in a handful of localities from the Cambrian to the Devonian ...
A Seilacher   +24 more
core   +1 more source

Geometry and Kinematics of the Hormuz Salt at Jebel Al Dhanna, United Arab Emirates: Implications for Salt Tectonics and Subsurface Storage

open access: yesTectonics, Volume 44, Issue 11, November 2025.
Abstract The United Arab Emirates government is assessing the potential of Hormuz Salt domes for subsurface storage, aligning with the transition toward clean energy systems and carbon reduction goals. However, the geometry, kinematics, and halokinetic evolution of these salt structures remain poorly constrained.
M. Ali, Hamda Alshehhi, Mohammed Y. Ali
wiley   +1 more source

Aspects of the taphonomy of the Cambrian Explosion in North Greenland [PDF]

open access: yes, 2017
This thesis describes and elucidates the taphonomic pathways responsible for the exceptional preservation of some of the most common elements of the Sirius Passet Lagerstätte (early Cambrian), North Greenland.
STRANG, KATIE,MARGARET
core  

Orbitally‐Driven Nutrient Pulses Linked to Early Cambrian Periodic Oxygenation and Animal Radiation

open access: yesGeophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract During the Cambrian Explosion, episodic radiations of major animal phyla occurred in concert with repeated coupled carbon‐sulfur isotope excursions. These isotope patterns are thought to reflect oscillations in atmospheric and shallow‐marine O2, which promoted animal diversification events. However, the driver for oxygenation pulses is unclear.
Yinggang Zhang   +6 more
wiley   +1 more source

Trilobite Eyes and Their Evolution

open access: yesArthropoda
Trilobites, as typical euarthropods, possess compound eyes. In 1901, Lindström was the first to describe them in detail; on the one hand, we reconsider his descriptions of the different modes of trilobite eyes; on the other hand, we expand this by ...
Brigitte Schoenemann
doaj   +1 more source

Atractocybeloides, eine kleinwüchsige Trilobitengattung aus baltoskandischen Geschieben und ihrem Anstehenden [PDF]

open access: yesFossil Record, 2002
Aus mittel- bis oberordovizischen Geschieben werden fünf Taxa der kleinwüchsigen Trilobitengattung Atractocybeloides vorgestellt, davon die beiden neuen Arten Atractocybeloides nebeni n. sp. und Atractocybeloides oepiki n. sp.
H.-H. Krueger
doaj   +3 more sources

The crucial role of meshing in computational fluid dynamics simulations for organic geometries in paleobiology: Describing fluid dynamics performance through best practices

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 10, Page 2170-2194, October 2025.
Abstract Computational fluid dynamics (CFD) has become an essential tool for studying fluid interactions in biological systems. While widely used in engineering, its application in the natural sciences, particularly in paleobiology, remains limited due to the challenges of meshing complex organic geometries.
Matheo López‐Pachón   +1 more
wiley   +1 more source

Type Specimens of the Species of the Genus Papillicalymene (Arthropoda, Trilobita) from Ukraine Described by Leonid Konstantynenko

open access: yesZoodiversity
The article presents diagnoses and information on the type series of two trilobite species of the genus Papillicalymene Shirley, 1936: P. dnistroviana Konstantynenko, 2006 and P. sokoliana Konstantynenko, 2006 from the Ludlow (Upper Silurian) of Podillia
V. Dernov
doaj   +1 more source

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