Results 131 to 140 of about 46,904 (239)

Predatory synapsid ecomorphology signals growing dynamism of late Palaeozoic terrestrial ecosystems

open access: yesCommunications Biology
Terrestrial ecosystems evolved substantially through the Palaeozoic, especially the Permian, gaining much new complexity, especially among predators. Key among these predators were non-mammalian synapsids. Predator ecomorphology reflect interactions with
Suresh A. Singh   +4 more
doaj   +1 more source

The caliph and the falcons: a ninth‐century history from Iceland to Iraq

open access: yesEarly Medieval Europe, Volume 34, Issue 2, Page 299-322, May 2026.
In the late ninth and early tenth centuries, an extraordinary number of falcons were given to the ʿAbbāsid caliphs in Baghdad, many of which were white. Gifts from competing dynasties in the northern provinces of the Caliphate, at least some of these birds were almost certainly gyrfalcons from near the Arctic Circle.
Caitlin Ellis, Sam Ottewill‐Soulsby
wiley   +1 more source

Progress on the palynostratigraphy of the Permian strata in Rio Grande do Sul State, Paraná Basin, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2005
A review of published papers and results of analysis of new material have allowed improvements on the palynostratigraphy of the Permian strata of the Paraná Basin in Rio Grande do Sul State.
Souza Paulo A., Marques-Toigo Marleni
doaj  

From Lability to Conservatism: Evolutionary Patterns in the Traits of Stream Trichoptera

open access: yesFreshwater Biology, Volume 71, Issue 5, May 2026.
ABSTRACT The ability to predict biodiversity responses to ongoing environmental change depends on understanding the extent to which traits are conserved across evolutionary history. Examining the relationship between traits and phylogeny provides key insights into how evolutionary history constrains and structures the traits.
Mariana Nunes Menegat   +2 more
wiley   +1 more source

Morphology and osteo‐histology of the weigeltisaurid wing: Implications for aerial locomotion in the world's first gliding reptiles

open access: yesJournal of Anatomy, Volume 248, Issue 5, Page 843-872, May 2026.
This study investigates the morphology and osteo‐histology of the wing skeleton of the world's first gliding reptiles, showing how it differs from those of extant gliding lizards, yet is also convergently similar. These findings pave the way for future biomechanical studies on the gliding locomotion of these emblematic fossil animals. Abstract The Late
Valentin Buffa   +7 more
wiley   +1 more source

Geochronology, geochemistry, and geological evolution of the Troiseck-Floning and Rosskogel nappes (Eastern Alps): unraveling parallels between the Eastern Alps and Western Carpathians

open access: yesSwiss Journal of Geosciences
The Troiseck-Floning and Rosskogel nappes are part of the Austroalpine Unit in the eastern part of the Eastern Alps. The nappes are in tectonic contact and comprise Permian to Mesozoic lower greenschist facies metamorphic metasediments, but only the ...
Martin K. Reiser   +4 more
doaj   +1 more source

Fascinating single‐cell red algae: models for evolution and adaptation

open access: yesNew Phytologist, Volume 250, Issue 3, Page 1424-1437, May 2026.
Summary The unicellular red algae, Cyanidiophyceae, that diverged early during Archaeplastida (algal and plant) evolution, occupy a variety of extreme habitats that are inhospitable for most other eukaryotes. With the use of modern genomics and genetics methods, Cyanidiophyceae show a remarkable taxonomic diversity, share haplodiplophasic life cycles ...
Frédéric Berger   +13 more
wiley   +1 more source

The boundary between the Central Asian Orogenic belt and Tethyan tectonic domain deduced from Pb isotopic data [PDF]

open access: yes, 2015
Castillo, Paterno R   +7 more
core   +1 more source

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