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33 results for “bird origins”
Data from: Ancestral origins and invasion pathways in a globally invasive bird correlate with climate and influences from bird trade
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Data from: Where do wintering cormorants come from? Long-term changes in the geographical origin of a migratory bird on a continental scale
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Data from: Probabilistic divergence time estimation without branch lengths: dating the origins of dinosaurs, avian flight and crown birds
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Extended Data Fig. 8 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Extended Data Fig. 8 | Relative body size of A. maastrichtensis. Estimate of the mean body size of the Asteriornis holotype25 compared with extant Galloanserae82, ranked on the x axis from smallest to largest.The mean body- size estimate for Asteriornis (394 g) is closest to that of male Anas crecca (392 g; 7.8th percentile among Anseriformes) and female Perdix perdix (393 g;33rd percentile among Galliformes).
Extended Data Fig. 7 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Extended Data Fig. 7 | Internal composition of NHMM 2013 008 blocks. a, Block containing the left femur,left tibiotarsus and the main portion of the skull,viewed from the side with the femur exposed.b, Same block as in a, viewed from the side containing the tibiotarsus.c, Block containing the right femur and tarsometatarsus.d, Block containing the right distal radius,several unidentified bone fragments and a portion of the cranial roof near the frontoparietal suture.e, Block containing the right tibiotarsus.Numerous fragments of fossil echinoderms and molluscs are visible within the blocks. Scale bars,1 cm.
Extended Data Fig. 4 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Extended Data Fig. 4 | Detailed comparisons of galloanseran quadrate morphology. Skulls and quadrates of extant Galliformes and total-group Anseriformes.The skull of Presbyornis USNM 299846 is shown.Scale bars 5 mm (quadrates);1 cm (skulls).Skulls are in left lateral view except Presbyornis, which is in reflected right lateral view.FPB, foramen pneumaticum basiorbitale;FPR, foramen pneumaticum rostromediale. ,
Extended Data Fig. 1 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Extended Data Fig. 1 | Detailed cranial and mandibular anatomy of A. maastrichtensis (NHMM 2013 008). The views of the cranium are similar to those in Fig.1, but with the jaws removed to illustrate the ventral portion of the skull.
Fig. 2 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Fig. 2 | Comparative quadrate and skull morphology of selected total-group Galloanserae.a–d, Left quadrates (and reflected right quadrate of Presbyornis) in medial view (left) and caudal view (middle).Skulls are in right lateral view,except Alectura which is in reflected left lateral view.The skull of Presbyornis USNM 299846 is shown.Scale bars, 5 mm (quadrates);1 cm (skulls). See Extended Data Fig.4 for additional high-resolution images of these taxa and other extant and fossil Galloanserae.
Fig. 1 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Fig. 1 | Digitally segmented skull of Asteriornis maastrichtensis. a–c, Left lateral view (a), right lateral view (b) and dorsal view (c) of the A. maastrichtensis skull.d, Comparison of retroarticular processes in lateral view of Anatalavis oxfordi (right side) and Asteriornis (left side,reflected). Selected synapomorphies are denoted with numbers (red, Neornithes;green, Galloanserae37–39): 1, bony mandibular symphysis;2, toothless beak;3, no coronoid bone;4, bicondylar mandibular process of quadrate;5, retroarticular process long, curving,strongly compressed mediolaterally;6, dorsally oriented internal articular process of mandible;7,maxillary process of premaxilla dorsoventrally deep and lateromedially compressed.Scale bars, 5 mm.
Extended Data Fig. 2 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Extended Data Fig. 2 | Higher-resolution cranial and mandibular anatomy of A. maastrichtensis (NHMM 2013 008). Labels have been removed and images enlarged to show details.
Extended Data Fig. 5 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Extended Data Fig. 5 | Detailed comparisons of galloanseran retroarticular morphology. Retroarticular regions of left mandibles in lateral (left),medial (middle) and dorsal (right) views.Both the left and right mandibles of Asteriornis are shown in dorsal view,as the retroarticular process is only preserved on the left mandible and the medial process is only preserved on the right mandible.Images of Anatalavis are mirrored. Scale bars,1 cm.
Figure 3. A–D in Insights into the geographical origin and phylogeographical patterns of Paradisaea birds-of-paradise
Figure 3. A–D, Chronological sequence of ancestral areas inferred for major nodes/clades (N1–N13) discussed in the text and in Table 2 (see Fig. 2 for node numbers). In the lower panels (C, D), colonization routes from their centres of origin (parental nodes) are represented by arrows for each species and Clades 1–3 within the apoda–minor–raggiana clade. See also the Supporting Information, File S1 (to be opened with Google Earth) that was generated with SPREAD and shows a dynamic visualization of colonization pathways across the island.
Figure 1 in Insights into the geographical origin and phylogeographical patterns of Paradisaea birds-of-paradise
Figure 1. Map of New Guinea and adjacent islands including sampling points of individuals sequenced in the course of this study. Shape files for the distribution of the apoda–minor–raggiana clade (i.e. P. apoda, P. minor and P. raggiana) were obtained from the IUCN Red List of Threatened Species (BirdLife International, 2016, 2018a, b). Individuals no. 113–115 were originally determined as P. apoda. However, a re-examination revealed that while it is difficult to correctly assign these subadult individuals, their overall body size is indicative of P. raggiana. Also note that other individuals mentioned in the text (no. 49, 90, 131 and 154) were sampled outside the known native range of the respective species.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.