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8 results for “Origin of flight”
Fig. 4 in Scapular orientation in theropods and basal birds, and the origin of flapping flight
Fig. 4. Angles between furcular arms in non−avian theropods and birds. Data sources listed in Table 1.
Fig. 1 in Scapular orientation in theropods and basal birds, and the origin of flapping flight
Fig. 1. Scapular position and glenoid orientation in articulated skeletons of non−avian dinosaurs, with glenoids indicated by arrows. A. Dorsal view of the ornithischian dinosaur Psittacosaurus mongoliensis, AMNH 6254, showing lateral position and wide spacing of scapulae. B. Lateral view of the ornithischian dinosaur Centrosaurus apertus, AMNH 5351, showing ventral orientation of glenoid and position of glenoid anteroventral to ribcage. C. Lateral view of the ornithomimid theropod dinosaur Struthiomimus altus, AMNH 5339, showing position of glenoid anteroventral to ribcage. D. The deinonychosaurian theropod dinosaur Velociraptor mongoliensis, IGM 100/976, in dorsal (D1), right lateral (D2), and anterior (D3) views, with the furcula outlined in white for clarity, showing that the scapulae are widely spaced, laterally positioned, and exhibit ventrally oriented glenoids, as in other dinosaurs. Broken white lines in (D1) indicate lateral extemities of vertebral column.
Fig. 3 in Scapular orientation in theropods and basal birds, and the origin of flapping flight
Fig. 3. Articulated skeletons of Mesozoic birds, showing scapular position and glenoid orientation, with glenoids indicated by arrows. A. AMNH cast of "Berlin specimen" of Archaeopteryx lithographica, showing that the glenoids are anteroventral to the ribcage. The unnatural position of the left humerus above the glenoid is an artifact of dislocation of the left shoulder. B. AMNH cast of the "Eichstätt specimen" of Archaeopteryx lithographica, showing that the glenoid is anteroventral to the ribcage. C. Confuciusornis sanctus in dorsal view, showing wide spacing and lateral position of scapulae, with lateral extremities of vertebral column (extrapolated from dimensions of disarticulated dorsal vertebrae) represented by a pair of broken lines. Modified from Chiappe et al. (1999). D. The enantiornithine bird Eoalulavis hoyasi, LH 13500a, in dorsal view, showing close spacing and dorsal position of scapulae.
Data for Origins of UTLS Turbulence: Insights from the RRJ-ClimCORE Mesoscale Reanalysis - The ACCLIP Flight Over the Super Typhoon Hinnamnor (2022)
<p>Data used in our paper entitled "Origins of UTLS Turbulence: Insights from the RRJ-ClimCORE Mesoscale Reanalysis - The ACCLIP Flight Over the Super Typhoon Hinnamnor (2022)".</p> <p>The user may use these data only for the purpose of scientific evaluation of this paper and secondary distribution is prohibited. See README file for more details.</p>
Data from: Reanalyzing the Palaeoptera problem - the origin of insect flight remains obscure
The phylogenetic relationships of the winged insect lineages – mayflies (Ephemeroptera), damselflies and dragonflies (Odonata), and all other winged insects (Neoptera) – are still controversial with three hypotheses supported by different datasets: Palaeoptera, Metapterygota and Chiastomyaria. Here, we reanalyze available phylogenomic data with a focus on detecting confounding and alternative signal. In this context, we provide a framework to quantitatively evaluate and assess incongruent molecular phylogenetic signal inherent in phylogenomic datasets. Despite overall support for the Palaeoptera hypothesis, we also found considerable signal for Chiastomyaria, which is not easily detectable by standardized tree inference approaches. Analyses of the accumulation of signal across gene partitions showed that signal accumulates gradually. However, even in case signal only slightly supported one over the other hypothesis, topologies inferred from large datasets switch from statistically strongly supported Palaeoptera to strongly supported Chiastomyaria. From a morphological point of view, Palaeoptera currently appears to be the best-supported hypothesis; however, recent analyses were restricted to head characters. Phylogenetic approaches covering all organ systems including analyses of potential functional or developmental convergence are still pending so that the Palaeoptera problem has to be considered an open question in insect systematics.
Data from: Reanalyzing the Palaeoptera problem - the origin of insect flight remains obscure
Open the record for dataset details and reuse information.
Data from: Probabilistic divergence time estimation without branch lengths: dating the origins of dinosaurs, avian flight and crown birds
Open the record for dataset details and reuse information.
Transcriptomic responses of Arabidopsis thaliana lines WS and sku5 to the Blue Origin NS-12 and Virgin Galactic VP-03 suborbital flights
GEO Series GSE160846. Arabidopsis thaliana. 24 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.