Results 91 to 100 of about 8,547 (241)

Echinoderms from the Lower Devonian (Emsian) of Bolivia (Malvinokaffric Realm)

open access: yes, 2013
Crinoid faunas from the Lower Devonian of South America are poorly known. Two new taxa are described from the Emsian Icla Formation at Cerro Kochis in the Cochabamba Department: the rhodocrinitid, Lutocrinus boliviaensis n. gen. n. sp.
Thompson, Jeffrey R.   +2 more
core   +1 more source

Devonian plates.

open access: yes, 1913
Lower devonian plates xvii-xcviii.--Middle devonian plates vii-xliv.--Upper devonian plates xlv-lxxiii.Mode of access ...
Maryland Geological Survey.
core  

The importance of integrating herbarium records into conservation plans: a case study on Honduran ferns and lycophytes

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1238-1255, July 2026.
Herbarium collections are powerful, yet underutilized, tools for global biodiversity conservation and protected area management. By integrating digitized herbarium records with existing biodiversity data, previously unknown plant species were uncovered, exposing critical gaps in conservation knowledge.
Sven P. Batke   +6 more
wiley   +1 more source

Comparative Ionomics of Lycopodiaceae and Selaginellaceae Across Diverse Soil Types in Japan

open access: yesEcological Research, Volume 41, Issue 4, July 2026.
We conducted a comparative ionomic analysis of Lycopodiaceae and Selaginellaceae collected from diverse soil types in Japan, including serpentine soils and solfatara fields, to examine how evolutionary lineage and soil environment shape elemental composition in lycophytes.
Akinori Ren   +12 more
wiley   +1 more source

Devonian organogenic buildings of the Urals and adjacent regions of East-Europian Platform and West Siberian

open access: yesЛитосфера, 2015
Several reef-building systems occurred during Cambrian-Devonian on the Urals and adjacent regions of the East-European Platform. The first phase was manifested in the Lower Cambrian within a limited area of the western slope of the Urals.
B. I. Chuvashov   +4 more
doaj   +2 more sources

Stratigraphic palynology of Devonian boreholes from northern Saudi Arabia

open access: yesCarnets de Géologie, 2005
This extended abstract describes well-preserved palynomorph assemblages recovered from Devonian strata in five shallow boreholes in the northern part of Saudi Arabia.
Breuer Pierre   +5 more
doaj  

The dental plate on bichir pectoral fins: A unique dermal skeletal element bearing individual odontodes with tooth‐like replacement

open access: yesJournal of Anatomy, Volume 249, Issue 1, Page 127-140, July 2026.
Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek   +2 more
wiley   +1 more source

Microbial wrinkle structures in Lower Devonian shales, Wormit, Fife

open access: yes, 2016
This report describes the first recorded occurrence of microbial wrinkle structures in Lower Devonian sediments in Scotland. A shale horizon at Wormit, NE Fife, has yielded a distinctive puckered surface that is interpreted as the product of microbial ...
Batchelor, Richard A.
core   +1 more source

Hyperspectral Fingerprinting of Dune Sediments Across the Arabian Peninsula: Insights Into Sediment Provenance and Transport Pathways From NASA's EMIT Data

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The Arabian Peninsula encompasses one of the world's most extensive aeolian systems, yet the provenance and transport history of its dune sediments are not well understood. Using hyperspectral data from NASA's Earth Surface Mineral Dust Source Investigation (EMIT), we mapped mineral compositions and abundance patterns across dune fields and ...
Ahmed Alshakr   +8 more
wiley   +1 more source

Seismic Evidence for Slab Tearing Beneath the Indo‐Myanmar Subduction Zone

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Slab tearing has been increasingly recognized as a key geodynamic process influencing the evolution of the eastern Himalayan syntaxis. However, whether, where and how the subducted Indian slab beneath the Indo‐Myanmar subduction zone has been torn remains poorly constrained.
Shun Yang   +9 more
wiley   +1 more source

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