Results 71 to 80 of about 8,152 (200)

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

The Paleo‐Tethys Suture Zone in the Afghan Hindu Kush‒Pamir: Geo‐Thermochronology, Geochemistry, Tectonics

open access: yesTectonics, Volume 45, Issue 3, March 2026.
Abstract In the Afghan Hindu Kush, the 223–209 Ma (≤800°C) Salang batholith is part of the Silk‐Road magmatic arc that was built on ∼40‐km‐thick Turan‐Karakum block continental crust. The batholith constitutes the hanging wall of the Herat‐Panjshir‐Badakhshan—the Paleo‐Tethys—suture zone, vestige of the subducted Paleozoic‐early Mesozoic Paleo‐Tethys ...
Lothar Ratschbacher   +8 more
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  

Observation of blue-shifted ultralong-range Cs$_{2}$ Rydberg molecules

open access: yes, 2012
We observe ultralong-range blue-shifted Cs$_{2}$ molecular states near $ns_{1/2}$ Rydberg states in an optical dipole trap, where $31\leq n\leq34$. The accidental near degeneracy of $(n-4)l$ and $ns$ Rydberg states for $l>2$ in Cs, due to the small ...
D. Booth   +5 more
core   +1 more source

Unravelling the 800‐million‐year geological history of the Nevis and Mamore ranges, Fort William, Scotland

open access: yesGeology Today, Volume 42, Issue 2, Page 97-111, March/April 2026.
The Nevis and Mamore ranges near Fort William comprise some of the most popular and spectacular of all Scotland's mountains including the highest peak, Ben Nevis. The beauty of this mountainous region is the product of a long and complex geological evolution, spanning 800 million years of Earth's history.
James S.K. Barnet
wiley   +1 more source

Scotland : Hebridean Terrane [PDF]

open access: yes, 2011
The Cambrian succession in the Hebridean Terrane extends for about 200 km from near Durness on the northern coast of the Scottish mainland SSW to Skye (Fig. 14). The classic account of the whole region is the memoir by Peach et al.
Molyneux, S.G., Rushton, A.W.A.
core  

Palaeoecology of Middle Devonian epizoans and their Paraspirifer hosts

open access: yesPalaeontology, Volume 69, Issue 2, 2026.
Abstract The Silica Shale brachiopod, Paraspirifer bownockeri, of Ohio and Michigan, USA, preserves a unique window into Middle Devonian communities, as individuals hosted numerous epibionts. Herein, we use qualitative and quantitative methods to test hypotheses regarding the palaeoecology of these brachiopod hosts and their epibionts.
Haley N. Vantoorenburg   +6 more
wiley   +1 more source

Cruziana traces from the Late Silurian (Pridoli) carbonate shelf of Saaremaa, Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2014
Late Pridoli Cruziana traces have recently been found in carbonate shelf sediments of the Ohesaare Formation on Saaremaa Island, Estonia. Cruziana isp. is interpreted here as a locomotory trace (repichnia) of an arthropod, possibly a trilobite.
Olev Vinn
doaj   +1 more source

Cretaceous lacewing larvae with binocular vision demonstrate the convergent evolution of sophisticated simple eyes

open access: yesInsect Science, Volume 33, Issue 1, Page 441-452, February 2026.
We report three ca. 100 million‐year‐old lacewing larvae with extraordinarily large stemmata. One of them additionally has a very wide head, which represents a previously unknown morphology. The arrangement of the stemmata indicates stereoscopic vision in these predatory larvae.
Carolin Haug   +9 more
wiley   +1 more source

Palaeoscolecids from the early Cambrian Guanshan biota, Yunnan Province, China

open access: yesPapers in Palaeontology, Volume 12, Issue 1, January/February 2026.
Abstract Palaeoscolecidomorphs (Palaeoscolecida and Cricocosmiidae) are widespread early Palaeozoic worms crucial to understanding the early evolution of Ecdysozoa. They are well known from the early–middle Cambrian of the Yangtze Platform of South China, but research has disproportionately focused on the well‐known Cambrian Stage 3 Chengjiang biota of
Xiaomei Shi   +3 more
wiley   +1 more source

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