Results 81 to 90 of about 10,320 (217)
Linguloidean brachiopods from the Lower Ordovician (Tremadocian) of northwestern Argentina [PDF]
, 2015 The new obolid Torobolus subplanus gen. et sp. nov., from the lower Temadocian Devendeus Formation, the new species Libecoviella tilcarensis and Leptembolon argentinum, and Ectenoglossa sp.
Benedetto, Juan Luis Arnaldo +1 more
core
A new marrellomorph euarthropod from the Early Ordovician of Argentina [PDF]
, 2016 Marrellomorphs (class Marrellomorpha) are a group of Paleozoic arthropods with a very poor fossil record. Here we describe a new marrellomorph arthropod Mimetaster florestaensis sp. nov. from the Tremadocian (earliest Ordovician) of Argentina.
Aris, María Josefina +3 more
core +1 more source
The 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
Tectonics, 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
ZoodiversityThe 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
Geologica Acta, 2005 A review of the supposed moulting positions of the Bohemian Ordovician dalmanitoid and acastoid trilobites is presented. Five main moulting positions are described, but some combinations of these are also widespread.
P. Budil, J. Bruthansová
doaj +1 more source
The Cambrian of the Iberian Peninsula : an overview [PDF]
, 2003 This work is a brief overview of the Cambrian in the Iberian Peninsula, along with an updated review of lithostratigraphic and biostratigraphic data. A Cambrian correlation chart between the different stratigraphical units that have been established in ...
Gozalo, R. +4 more
core +4 more sources
Orbitally‐Driven Nutrient Pulses Linked to Early Cambrian Periodic Oxygenation and Animal Radiation
Geophysical 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
Biostratigraphic significance of the latest Cambrian-earliest Ordovician agnostoid trilobites from Northwestern Argentina [PDF]
, 2003 The biostratigraphic significance of the latest Cambrian-earliest Ordovician trilobite agnostoids from northwestern Argentina is summarized. A characterization of the faunas recognized below and above the Cambrian-Ordovician boundary is presented on the ...
Tortello, M. F.
core +4 more sources
Origin and evolution of the earth and its life [PDF]
, 1921 Thesis (M.A.)--Boston ...
Patch, Esther Maude
core +1 more source