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1,817 results for “Late Cretaceous”
Insect herbivory for Catula gettyi, a late Cretaceous laurel from Utah, USA
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Morphometric analysis of the Late Cretaceous Placenticeras of Alabama, USA: Sexual dimorphism, allometry, and implications for taxonomy
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The evolution of ectomycorrhizal symbiosis in the Late Cretaceous is a key driver of explosive diversification in Agaricomycetes
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Data from: Estimates of late Early Cretaceous atmospheric CO2 from Mongolia based on stomatal and isotopic analysis of Pseudotorellia
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Data from: Ankylosaurian body armor function and evolution with insights from osteohistology and morphometrics of new specimens from the Late Cretaceous of Antarctica
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Data from: Phylogenomic and anatomical evidence for the Late Cretaceous diversification of African characiform fishes, including a new family, under the influence of the Trans-Saharan Seaway
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Data from: A unique Late Cretaceous fossil wood assemblage from Chilean Patagonia provides clues to high-latitude continental environment
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Data from: Late Cretaceous bird from Madagascar reveals unique development of beaks
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Data from: Oxygen isotope composition of teeth suggests endothermy and possible migration in some Late Cretaceous shark taxa from the Gulf Coastal Plain, USA
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Data from: Sexual dimorphism and sexual selection in cytheroidean ostracodes from the Late Cretaceous of the US Coastal Plain
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Data from: A new Late Cretaceous iguanomorph from North America and the origin of New World Pleurodonta (Squamata, Iguania)
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New application of strontium isotopes reveals evidence of limited migratory behaviour in Late Cretaceous hadrosaurs
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The role of substrate in determining the dominance of immobile, epifaunal bivalves in the Late Cretaceous
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Extended Data Fig. 6 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Extended Data Fig. 6 | Postcranial morphology of A. maastrichtensis (NHMM 2013 008). The left distal femur of Presbyornis pervetus (UW 27596) is shown for comparison.
Extended Data Fig. 3 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Extended Data Fig. 3 | Morphology of individually segmented skull elements from A. maastrichtensis (NHMM 2013 008). Dorsal,ventral and rostral views of the frontals show the nasals separated from their in situ position to illustrate the morphology of the nasofrontal contact.Scale bars,1 cm.
Fig. 3 in Late Cretaceous neornithine from Europe illuminates the origins of crown birds
Fig. 3 | Relationships of A. maastrichtensis and stratigraphic provenance of holotype. a, Cladogram showing the phylogenetic position of Asteriornis and Vegavis inferred under parsimony (solid coloured lines) and tip-dated Bayesian analyses (dashed lines).A position for Vegavis allied with Anseriformes,as previously found12,28,34, is also shown (curved branch).Numbers within clades denote extant species richness.The analysis is based on a newly modified dataset;see Extended Data Fig. 9 and Supplementary Information for full phylogenetic results.Extinct taxa are denoted with daggers.b, Simplified stratigraphy of the Maastricht Formation,exposed in the vicinity of the holotype locality and surrounding areas24. c, Location of the CBR-Romontbos Quarry near Eben-Emael,Belgium.
Formation binning: a new method for increased temporal resolution in regional studies, applied to the Late Cretaceous dinosaur fossil record of North America
<p>The advent of palaeontological occurrence databases has allowed for detailed reconstruction and analyses of species richness through deep time. While a substantial literature has evolved ensuring that taxa are fairly counted within and between different time periods, how time itself is divided has received less attention. Stage-level or equal-interval age bins have been frequently used for regional and global studies in vertebrate palaeontology. However, when assessing diversity at a regional scale, these resolutions can prove inappropriate with the available data. Herein, we propose a new method of binning geological time for regional studies that intrinsically incorporates the chronostratigraphic heterogeneity of different rock formations to generate unique stratigraphic bins. We use this method to investigate the diversity dynamics of dinosaurs from the Late Cretaceous of the Western Interior of North America prior to the Cretaceous–Palaeogene mass extinction. Increased resolution through formation binning pinpoints the Maastrichtian diversity decline to between 68–66 Ma, coinciding with the retreat of the Western Interior Seaway. Diversity curves are shown to exhibit volatile patterns using different binning methods, supporting claims that heterogeneous biases in this time-frame affect the pre-extinction palaeobiological record. We also show that apparent high endemicity of dinosaurs in the Campanian is a result of non-contemporaneous geological units within large time bins. This study helps to illustrate the utility of high-resolution, regional studies to supplement our understanding of factors governing global diversity in deep time and ultimately how geology is inherently tied to our understanding of past changes in species richness.</p>
Appendix 1 in Late Cretaceous dinosaurs from the Denver Basin, Colorado
Appendix 1 (continued on next page). Localities containing dinosaurian fossils in Denver Basin, Colorado. Strata in reverse stratigraphic order. See Figure 1 for plot of localities. Precise locality information on file at University of Colorado Museum, Denver Museum of Nature & Science, Yale Peabody Museum, and National Museum of Natural History. Some sites are no longer accessible due to construction. Some sites were recorded but specimens were too scrappy for collection; these are added for completeness. Locality numbers given where available (many sites have no number).
Figure 11 in Late Cretaceous dinosaurs from the Denver Basin, Colorado
Figure 11, left. Fossils referred to Torosaurus sp. (DMNH 17060), formerly known as Leyden Triceratops. Left dentary in lateral (A) and medial (S') views. Left coracoid (C), and left scapula (D). Crushed left humerus in anterior (E), and posterior (E) views. Right pubis (G) and ischium (FT). Scale bar = 10 cm.
Figure 17 in Late Cretaceous dinosaurs from the Denver Basin, Colorado
Figure 17. Restored pelvis of the ceratopsian shown in Figure 8 in right lateral view (pubis reversed). Scale bar = 10 cm.
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.