Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
127
datasets available to search
ShareScore release 0.9.0
Dataset results
127 results for “exceptional preservation”
Fig. 4 in The Chinchilla Local Fauna: An exceptionally rich and well-preserved Pliocene vertebrate assemblage from fluviatile deposits of south-eastern Queensland, Australia
Fig. 4. Reptiles from Chinchilla Sand, Australia, Pliocene. A.?Reptilia, QM F56197, Chinchilla Rifle Range, unidentified fragments (A 1 –A 3), showing the WPC registration numbers of Agamidae sp. indet. cited by Hutchinson and Mackness (2002). B. Varanus sp. QM F56189, "Wilkinson's Quarry" Chinchilla Rifle Range, dorsal vertebra. C. Quinkana sp., QM F10204, Chinchilla Rifle Range, isolated tooth. D. Trionychidae sp. indet. QM F9037, Fairymeadow, carapace fragment. E. Emydura sp., QM F7035, Middle Gully, Chinchilla Rifle Range, anterior half of carapace. F. Pallimnarchus pollens de Vis, 1886, QM F11612, "Sand Scree locality, 4'6" from top of bank of Condamine River", symphyseal portion of dentary. G. Varanus komodoensis Ouwens, 1912, QM F874, unspecified locality near Chinchilla, right maxilla. Scale bars 20 mm.
Fig. 1 in The Chinchilla Local Fauna: An exceptionally rich and well-preserved Pliocene vertebrate assemblage from fluviatile deposits of south-eastern Queensland, Australia
Fig. 1. Physiography of the Chinchilla local area, showing the location of Chinchilla relative to the Condamine River System. Redrawn after Reiser 1971).
FIGURE 8 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 8. Strict consensus of 281 trees, 420 steps in length showing the phylogenetic relationships of Thomashuxleya within Notoungulata based on the morphological dataset of Deraco and García-López (2015). Numbers indicate bootstrap values above 50.
FIGURE 10 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 10. Strict consensus of 620 trees, 122391 steps in length from parsimony analysis of combined proteomic and morphological data constraining monophyly of each of two clades (but not both together): Notoungulata (i.e., Thomashuxleya and Toxodon) and Litopterna (i.e., Protolipterna and Macrauchenia).
FIGURE 6 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 6. Hindlimb of T. externa (MPEF-PV 8166). right pelvis in 1 dorsal and 2 lateral views; 3 right femur in anterior view; 4 right tibia in proximal (top), anterior (middle) and distal (bottom) views; left astragalus in 5 dorsal and 6 plantar views; 7 right navicular in proximal view; 8 navicular and entocuneiform in plantar views.
FIGURE 5 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 5. Forelimb of T. externa (MPEF-PV 8166). 1 right and left ulnae in frontal view; 2 left ulna in medial view; right radius in 3 frontal, 4 lateral, and 5 posterior views.
FIGURE 4 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 4. Scapulae and humeri of T. externa (MPEF-PV 8166). 1 right and 2 left scapulae in proximal view; 3 left scapula in dorsolateral view; right and left humeri in 4 right and left humeri in anterior (top) and distal (bottom) views; 5 right and left humeri in posterior view.
FIGURE 1 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 1. Geographical and stratigraphical occurrence of MPEF-PV 8166. 1 location of Cañadón Vaca, Chubut, Argentina; 2 Paleogene time table and South American Land Mammal Ages (SALMAs) after (Woodburne et al. 2014a,b); 3 skeletal restoration of Thomashuxleya modified from Simpson (1936); 4 artistic reconstruction of Thomashuxleya externa (by Stjepan Lukac).
FIGURE 2 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 2. Skull of T. externa (MPEF-PV 8166). 1 ventral view; 2 lateral view; 3 occiput in caudal view; 4 detail of upper dentition in occlusal view. Abbreviations are prot=protocone (part of the protoloph), par=paracone (part of the ectoloph), parst=parastyle, met=metacone (part of the ectoloph), metst=metastyle, meph=metaloph, pr.l.f.=primary lingual fold, m.cin=mesial cingulum, l.cin=lingual cingulum.
FIGURE 3 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 3. Mandible of T. externa (MPEF-PV 8166) in 1 dorsal and 2 lateral views; 3 lower dentition in occlusal view. Abbreviations are tri=trigonid, tal=talonid, prod=protoconid, metd=metaconid, entd=entoconid, hypd=hypoconulid.
FIGURE 9 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 9. Strict consensus of 510 trees, 122374 steps in length from unconstrained parsimony analysis of combined proteomic and morphological data.
FIGURE 12 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 12. Optimal Bayesian tree (i.e., 50% majority rule of post-burn-in trees) of combined proteomic and morphological analysis constraining monophyly of each of two clades (but not both together): Notoungulata (i.e., Thomashuxleya and Toxodon) and Litopterna (i.e., Protolipterna and Macrauchenia). Numbers represent Bayesian posterior probabilities; daggers indicate fossil taxa.
FIGURE 7 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 7. Bone histology and microstructure of T. externa (MPEF-PV 8166). 1 Cross section of the midshaft of the right femur; 2 same as 1 after conversion to a binary image (black represents bone and white the cavities); 3 bone histology under linear polarized light, with black arrows pointing the lines of arrested growth (LAGs). OCL= Outer circumferential layer. 4 Bone histology under cross polarized light.
FIGURE 11 in An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
FIGURE 11. Optimal Bayesian tree (i.e., 50% majority rule of post-burn-in trees) of combined proteomic and morphological data. Numbers represent Bayesian posterior probabilities; daggers indicate fossil taxa.
Figure 2 in Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
Figure 2. Scatterplots showing the size distribution of the elytra (A) Elytra from ZPAL AbIII/3520. (B) The elytra from ZPAL AbIII/3520 compared to those of ZPAL AbIII/3402 (see Discussion and Qvarnström et al.19). Note that both coprolites contain many similar-sized elytra attributed to Triamyxa coprolithica but also a few larger ones.
Figure 1 in Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
Figure 1. Contents of coprolite fragment ZPAL AbIII/3520 (A) The coprolite rendered semi-transparent with inclusions, such as beetle remains and fibrous networks, representing fungal colonies or algae visible. Top corner: silhouette of Silesaurus opolensis, the most probable coprolite producer. (B–D) The holotype specimen of Triamyxa coprolithica in ventral (B), lateral (C), and dorsal (D) views. (E and F) The second complete specimen in ventral (E) and anterior (F) views. Individual ventrites are indicated by roman numerals. (G) Triamyxa coprolithica preserved in various degrees of disarticulation. (H) An isolated head and two elytra that do not belong to Triamyxa coprolithica but to slightly larger beetles that were also ingested by the coprolite producer. (I) Examples of individual remains of Triamyxa coprolithica (meso- and metaventrite, head, head attached to pronotum, and three pronota). (J) Two of numerous elytra of similar size and morphology attributed to T. coprolithica. (K) Fibrous structures interpreted as fungi or algae. (L) Apossible decomposed wood fragment. Color coding: blue, eyes; purple, antennae; light purple, legs. Abbreviations: abd, abdomen; ant, antenna; cox, coxa; ey, eye; fem, femur; hd, head; lgs, legs; pp, propleuron; thx, thorax; tib, tibia; troch, trochanter; trs, tarsi; ventr, ventrites. See also Figure S1.
Figure 4 in Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
Figure 4. Ventral view of near-complete specimens of Triamyxa coprolothica gen. and sp. nov. showing the variation in the number of abdominal ventrites The specimens are color coded based on the most probable abdominal segmentation, which is either five (C–G and I) or six (A, B, and H). However, the preservation of some specimens (C, E, G, and I) makes it difficult to tell whether they have five or actually six ventrites.
Figure 3 in Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
Figure 3. Phylogenetic position and morphology of Triamyxa coprolithica (Aand B) Results of Bayesian analysis of Coleoptera dataset, with fossil position in Polyphaga excluded following the prothorax morphology: (A) complete beetle tree with color-coded posterior probabilities (PPs) of Triamyxa position; (B) maximum credibility tree with Polyphaga not shown. (C–E) Reconstruction of Triamyxa morphology: (C) dorsal view; (D) ventral view of a specimen with 5-segmented abdomen; (E) specimen with exposed 6th abdominal ventrite (see Figure 4 for comparison of all specimens). (F–H) Alternative positions of Triamyxa revealed by Myxophaga analyses: (F) Bayesian, molecular topology constrained; (G) maximum parsimony, molecular topology constrained; (H) maximum parsimony, topology unconstrained. (I–Q) Comparative morphology of the prothorax in ventral view: (I) Olibrus; (J) Acrotrichis; (K) Scaphidium; (L) Nebria; (M) Beutelius; (N) Lepicerus; (O) Satonius; (P) Sphaerius; (Q) Hydroscapha. (R–T) Prothoracic morphology of Triamyxa revealed by superimposition of disarticulated remains: (R) isolated pronotum; (S) isolated pronotum with superimposed prosternum from another specimen; (T) final reconstruction with the position of propleuron. See also Figures S2 and S3.
SI for Cherns et al "Correlative tomography of exceptionally preserved Jurassic ammonite implies hyponome-propelled swimming"
<p>================================================================================<br> About<br> ================================================================================</p> <p>This repository is associated with:</p> <p>"Correlative tomography of exceptionally preserved Jurassic ammonite implies hyponome-propelled swimming"</p> <p>Authored by:</p> <p>Lesley Cherns (1), Alan R. T. Spencer (2,3), Imran A. Rahman (3,4), Russell J. Garwood (3,5), Chris Reedman (1,6), Genoveva Burca (7,8), Martin J. Turner (9), Neville T. J. Hollingworth (10), and Jason Hilton (11)</p> <p>1 School of Earth and Environmental Sciences, Cardiff University, Cardiff, UK<br> 2 Department of Earth Science and Engineering, Imperial College London, London, UK<br> 3 Earth Sciences Department, Natural History Museum, London, UK<br> 4 Oxford University Museum of Natural History, University of Oxford, Oxford, UK<br> 5 Department of Earth and Environmental Sciences, University of Manchester, Manchester, UK<br> 6 Jurassic Coast Trust HQ, Bridport, Dorset, UK<br> 7 Science and Technology Facilities Council, Rutherford Appleton Laboratory, ISIS Facility, Harwell, UK<br> 8 Faculty of Science and Engineering, University of Manchester, Manchester, UK<br> 9 Department of Computer Science, University of Manchester, Manchester, UK<br> 10 Science and Technology Facilities Council, Swindon, UK<br> 11 School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, UK</p> <p>================================================================================<br> Contents<br> ================================================================================</p> <p>This archive contains the following file(s):</p> <p>- ct_dataset.zip<br> - dragonfly_sigaloceras_enodatum.zip<br> - neutron_dataset.zip<br> - neutron_dataset_cropped_cleaned.zip<br> - photogrammetry_block_model.ply<br> - photogrammetry_dataset.zip<br> - stl_model_meshes.zip<br> - video.mkv<br> - video_blender.zip</p> <p>+ metadata.txt (this file)</p> <p>================================================================================<br> Note on .zip archives:<br> ================================================================================</p> <p>All .zip archive where created using 7-zip (https://www.7-zip.org/), using the<br> default .zip settings.</p> <p>================================================================================<br> File Descriptions and Metadata:<br> ================================================================================</p> <p>--------------------------------------------------------------------------------<br> ct_dataset.zip<br> --------------------------------------------------------------------------------</p> <p>X-ray CT data. A Nikon Metrology XTek XT H 225 at the University of Manchester<br> was used. The scan used a 0.5mm Copper filter, 145 kV, uA 85, capturing 6000 <br> projections on a 3192 x 2296 detector. The projection data was reconstructed <br> using Nikon Metrology NV’s XT 5.1.4.3 software.</p> <p>Dataset is consists of a .vol and .vgi (metadata) file. The .vol contains the<br> raw data for the individual slices. Each image has the following properties:</p> <p>Images format: 32-bit float (raw)<br> Image x/y: 3189 x 3191 px <br> Number of images: 1150<br> Caculated voxel size: 19.6419 µm</p> <p>Uncompressed total size: 45 GB</p> <p>--------------------------------------------------------------------------------<br> dragonfly_sigaloceras_enodatum.zip<br> --------------------------------------------------------------------------------</p> <p>Contains: sigaloceras_enodatum_final.ORSSession | 8.8 GB (uncompressed)</p> <p>The sigaloceras_enodatum_final.ORSSession file is a save DragonFly session.<br> The session conatains the full setup (aligned Nutron and CT datasets, ROIs, <br> segments, and meshes) used to produce and interpret the ammonite. </p> <p>DragonFly version: 2021.1.0.977<br> See: https://www.theobjects.com/dragonfly/index.html</p> <p>DragonFly was used under the terms of its Non-Commercial Use License.<br> Non-commercial licenses are granted free-of-charge to qualified researchers, <br> academics, and non-commercial developers for non-profit research or development <br> purposes. Non-commercial licenses are valid for a one-year period and can be renewed <br> annually at no charge.</p> <p>See: https://www.theobjects.com/dragonfly/get-non-commercial-licensing-program.html</p> <p>--------------------------------------------------------------------------------<br> neutron_dataset.zip<br> --------------------------------------------------------------------------------</p> <p>Neutron tomography was performed at the IMAT beamline of ISIS Neutron and Muon <br> Source, UK. Imaging was undertaken using an optical camera box with a <br> field-of-view of 120 x 120 mm2. A total of 1801 projections were acquired <br> over 360° rotation, with an exposure time of 30 s per projection, giving a total <br> duration of ~15 hours. Projections were reconstructed as two-dimensional <br> slices using Octopus Imaging Software. These slices have an uncompressed total <br> size of 15.4 GB. Each slice in the stack has the following properties:</p> <p>Images format: 16-bit .tiff<br> Image x/y: 2048 x 2048 px <br> Number of images: 2048<br> Caculated voxel size: 58 µm<br> Image size (uncompressed): 8192 MB each.</p> <p>--------------------------------------------------------------------------------<br> neutron_dataset_cropped_cleaned.zip<br> --------------------------------------------------------------------------------</p> <p>Neutron tomographic slices that have been cropped and cleaned (ie. had background <br> noise removed) based on images in neutron_dataset.zip. Images in .tiff format.<br> 1715 images in stack.</p> <p>--------------------------------------------------------------------------------<br> photogrammetry_block_model.ply<br> --------------------------------------------------------------------------------</p> <p>Model in .ply format (with coloured vertex) showing the limestone block and <br> counter-part of the ammonite. 257136 vertices and 513513 faces.</p> <p>--------------------------------------------------------------------------------<br> photogrammetry_dataset.zip<br> --------------------------------------------------------------------------------</p> <p>Photographs, with backgrounds removed, used to generate the 3D block model via<br> photogrammetry. The .zip archive contains 142 photographs.</p> <p>--------------------------------------------------------------------------------<br> stl_model_meshes.zip<br> --------------------------------------------------------------------------------</p> <p>.zip archive containing the 49 .stl meshes used in the creation of the 3D<br> reconstructions. These meshes have been smoothed within DragonFly prior to <br> exportation.</p> <p>--------------------------------------------------------------------------------<br> video.mkv<br> --------------------------------------------------------------------------------</p> <p>Video showing annimation starting with the limestone block and ammonite in<br> place, ammonite is then shown on its own, before the combinded neutron and x-ray<br> tomography results are presented.</p> <p>Length: 00:43 min<br> Size: 23.9MB<br> Format: .mkv</p> <p>--------------------------------------------------------------------------------<br> video_blender.zip<br> --------------------------------------------------------------------------------</p> <p>This .zip contains the Blender file used in the creation of the video.</p>
Text-fig. 26. Scanning electron microscope (SEM) images of stamens and pollen grains of Elasmostemon paisii gen. et sp. nov. (a–c) and laminar stamens with monocolpate reticulate pollen sp. (d–g); Catefica locality, Portugal. a) Stamen fragment with basal portion missing showing two pairs of pollen sacs on one surface of the stamen close to the margin and separated by a broad connective, except near the apex where the thecae meet; note that the thecae are dehisced with the walls of the pollen sacs curled back; b) Pollen grains inside a dehisced pollen sac; note variation in size and development of the reticulum; c) Detail of (b) showing monocolpate, reticulate pollen with lumen of reticulum varying markedly in size but partly obscured by residual organic material; d) Stamen with apical and basal part of anther preserved showing two pairs of pollen sacs (asterisks) on the curved, perhaps ventral, surface close to the stamen margin; e) Detail of crack in the anther showing the inner anther wall with densely spaced spherical orbicules that vary greatly in size; f) Pollen exposed in the crack in the anther; note coarsely foveolate to coarsely reticulate pollen wall and densely spaced orbicules; g) Folded pollen grains with reticulate pollen wall and also showing the inner anther wall with densely spaced spherical orbicules that vary greatly in size. Specimens, Catefica 49-S172560 (a–c), Catefica 50- S170384 (d–g). Scale bars = 600 Μm (a, d), 20 Μm (b, e), 6 Μm (c, f, g). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 26. Scanning electron microscope (SEM) images of stamens and pollen grains of Elasmostemon paisii gen. et sp. nov. (a–c) and laminar stamens with monocolpate reticulate pollen sp. (d–g); Catefica locality, Portugal. a) Stamen fragment with basal portion missing showing two pairs of pollen sacs on one surface of the stamen close to the margin and separated by a broad connective, except near the apex where the thecae meet; note that the thecae are dehisced with the walls of the pollen sacs curled back; b) Pollen grains inside a dehisced pollen sac; note variation in size and development of the reticulum; c) Detail of (b) showing monocolpate, reticulate pollen with lumen of reticulum varying markedly in size but partly obscured by residual organic material; d) Stamen with apical and basal part of anther preserved showing two pairs of pollen sacs (asterisks) on the curved, perhaps ventral, surface close to the stamen margin; e) Detail of crack in the anther showing the inner anther wall with densely spaced spherical orbicules that vary greatly in size; f) Pollen exposed in the crack in the anther; note coarsely foveolate to coarsely reticulate pollen wall and densely spaced orbicules; g) Folded pollen grains with reticulate pollen wall and also showing the inner anther wall with densely spaced spherical orbicules that vary greatly in size. Specimens, Catefica 49-S172560 (a–c), Catefica 50- S170384 (d–g). Scale bars = 600 Μm (a, d), 20 Μm (b, e), 6 Μm (c, f, g).
ScienceDex guides
Understand access before you commit
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.