Results 51 to 60 of about 6,700 (222)

Nota su alcuni brachiopodi miocenici di Florinas [PDF]

open access: yes, 1985
Some brachiopoda, founded in the Miocene of Province of Sassari are described. There are three species: Terebratula macrescens Dreger, Terebratulina retusa (Linneo) and Mergelia truncala(Linneo).
Marras, Gino, Ventura, Giulia
core  

Early Jurassic (latest Toarcian) brachiopods from the northeastern margin of the Western Tethys (Central Iran) and their paleobiogeographical significance [PDF]

open access: yes, 2014
Brachiopod fauna from central Iran, recorded in the upper part of the Shemshak Group and attributed to the upper Toarcian (Pseudoradiosa-Aalensis zones), are reported for the first time in Iran.
Ager   +121 more
core   +2 more sources

Structural Basis of GABAB Receptor Activation during Evolution

open access: yesAdvanced Science, Volume 12, Issue 37, October 6, 2025.
This study explores the structural and functional mechanisms of the drosophila GABAB receptor, a key role in neurotransmission. Using cryo‐EM, the research reveals how the receptor's activation differs from its human counterpart, highlighting unique evolutionary features.
Guofei Hou   +14 more
wiley   +1 more source

Laminar shell structure of Antigonambonites planus (Pander, 1830) (Brachiopoda, Billingsellida) [PDF]

open access: yesEstonian Journal of Earth Sciences, 2017
The order Billingsellida comprises brachiopods with laminar and fibrous shells, however, the data on their microstructure are scanty and the taxonomic value of differences in their shell structure is uncertain.
Anna Madison
doaj   +1 more source

Early Ordovician (Tremadocian) brachiopods from the Eastern Alborz Mountains, Iran [PDF]

open access: yes, 2011
Six linguliform and two rhynchonelliform brachiopods, including three new species Eurytreta ahmadii, Wahwahlingula kharbashi and Nanorthis bastamensis are described from Tremadocian strata (Paltodus deltifer deltifer conodont Biozone) in the Deh-Molla ...
Leonid E. Popov   +2 more
core   +1 more source

Testing the core–periphery hypothesis: a standardised multi‐phylum assessment of genetic diversity of marine coastal species

open access: yesEcography, Volume 2025, Issue 10, October 2025.
The core–periphery hypothesis (CPH) predicts that genetic diversity is greatest at the centre and lowest at the edges of a species' distribution because genetic diversity is a function of a species' abundance, which is also expected to be greatest at the centre and lowest at the edges of the distribution. Variants of the CPH include the ‘Ramped North' (
Daniel Cárcamo   +2 more
wiley   +1 more source

PHOTOGRAPHY: A CONVENIENT TECHNIQUE FOR RECORDING SERIAL TRANSVERSE SECTIONS OF BRACHIOPODS

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
A review of the bibliography coupled with the Authors' personal experience shows that drawing, as a technique for recording serial transverse sections of Brachiopods is inadequate and inaccurate.
CHIARA BENIGNI, CARLA FERLIGA
doaj   +1 more source

Taxon‐specific BLAST percent identity thresholds for identification of unknown sequences using metabarcoding

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 10, Page 2380-2394, October 2025.
Abstract The identification of organisms in environmental samples using metabarcoding relies on factors such as taxonomic assignment methods, genetic markers, reference databases and confidence thresholds for taxonomic assignment. Because lineages evolve at different rates, a global threshold (e.g.
Paula Pappalardo   +5 more
wiley   +1 more source

Gwynia capsula (Jeffreys, 1859) and other recent brachiopods from submarine caves in Croatia [PDF]

open access: yes, 1999
Recent brachiopods were co1lected in submarine caves along the Croatian coast of the Adriatic Sea. In a karstic cave at U Privlaka, Losinj Island, the micromorphic brachiopod Gwynia capsula (JEFFREYS, 1859) has been found for the first time in the ...
Simon, E., Willems, G.
core  

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