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.
1,817
datasets available to search
ShareScore release 0.7.1
Dataset results
1,817 results for “Late Cretaceous”
Figure 4 from: Woolley C (2016) The first scarabaeid beetle (Coleoptera, Scarabaeidae, Melolonthinae) described from the Mesozoic (Late-Cretaceous) of Africa. African Invertebrates 57(1): 53-66. https://doi.org/10.3897/AfrInvertebr.57.8416
Figure 4 - Ceafornotensis archratiras gen. and sp. n.: (A, B, C) holotype BP/2/18654, characters enlarged. Micrographs of: A right protibia B left mandible C aedeagus. Scale bar: 0.5 mm.
Figure 2 from: Woolley C (2016) The first scarabaeid beetle (Coleoptera, Scarabaeidae, Melolonthinae) described from the Mesozoic (Late-Cretaceous) of Africa. African Invertebrates 57(1): 53-66. https://doi.org/10.3897/AfrInvertebr.57.8416
Figure 2 - Ceafornotensis archratiras gen. and sp. n.: holotype BP/2/18654, habitus. Abbreviations: ae – aedeagus, a.l. – antennal lamellae, b.l. – basal lobe of mandible, cl – clypeus, g.l. – genal lobe, la? – labrum?, ma – mandible, ms – metasternum, msc – mesocoxa, msp – mesopisternum, mtc – metacoxa, mtp – metepisternum, pa – parameres, prc – procoxa, pt. I.? – protarsus I?, te? – tentorium?. Scale bar: 1 mm.
Figure 1 from: Woolley C (2016) The first scarabaeid beetle (Coleoptera, Scarabaeidae, Melolonthinae) described from the Mesozoic (Late-Cretaceous) of Africa. African Invertebrates 57(1): 53-66. https://doi.org/10.3897/AfrInvertebr.57.8416
Figure 1 - Strict consensus of six most parsimonious trees showing characters (above) and state (below). Bootstrap support values are given in parentheses (tree length=275 steps, ensemble consistency index (CI) = 0.39, ensemble retention index (RI) = 0.64). Ceafornotensis archratiras is referred to as "Orapa fossil". Character set from Bai et al. (2011).
Figure 3 from: Woolley C (2016) The first scarabaeid beetle (Coleoptera, Scarabaeidae, Melolonthinae) described from the Mesozoic (Late-Cretaceous) of Africa. African Invertebrates 57(1): 53-66. https://doi.org/10.3897/AfrInvertebr.57.8416
Figure 3 - Ceafornotensis archratiras gen. and sp. n.: holotype BP/2/18654, general appearance. Micrographs taken under: A polarised light B low angle unpolarised light. Scale bar: 1 mm.
Fig. 4. Representative batoid chondrichthyan teeth from the J&M in New Late Cretaceous microvertebrate assemblage from the Campanian-Maastrichtian Williams Fork Formation, northwestern Colorado, USA, and its paleoenvironmental implications
Fig. 4. Representative batoid chondrichthyan teeth from the J&M site, Colorado, USA, Williams Fork Formation, Upper Cretaceous. A, B. Myledaphus bipartitus Cope, 1876. A. MWC 8887, tooth crown and root in mesial (A1), labial (A2), and occlusal (A3) views. B. MWC 9591, tooth crown and root in mesial (B1), labial (B2), and occlusal (B3) views. C, D. Pseudomyledaphus sp. C. MWC 9589, tooth crown and root in mesial (C1) and occlusal (C2) views. D. MWC 9590, tooth crown and root in mesial (D1) and occlusal (D2) views. E, F. Cristomylus sp. E. MWC 8886, tooth crown in mesial (E1) and occlusal (E2) views. F. MWC 9588, tooth crown in mesial (F1) and occlusal (F2) views.
Fig. 2 in New Late Cretaceous microvertebrate assemblage from the Campanian-Maastrichtian Williams Fork Formation, northwestern Colorado, USA, and its paleoenvironmental implications
Fig. 2. Stratigraphy of the J&M site within the Williams Fork Formation. A. Regional Upper Cretaceous stratigraphy. B. Generalized stratigraphic section of the Williams Fork Formation west of Rangely (after Noll 1988). C. Stratigraphic section of Williams Fork Formation strata exposed at the J&M site, showing the stratigraphic position of the locality in Noll's (1988) "sandstone C". Width of stratigraphic units mimics the local weathering profile. Shading on unit 3B indicates a darker color than mudstones A and C. A detailed description of the J&M site stratigraphy is provided in the SOM: table S1 (Supplementary Online Material available at http://app.pan.pl/SOM/app67-Brand_etal_SOM.pdf).
Fig. 21 in Late Cretaceous mega-, meso-, and microfloras from Lower Silesia
Fig. 21. Hypothetical reconstruction of vegetal palaeocommunities in the Coniacian–Santonian of Lower Silesia (palaeocatena sensu Krassilov 2003: 65). Among fagaleans, hygrophilous Dryophyllum preserved in the megafossil record (pollen unknown, even if possibly belonging to the Normapolles group) is distinguished from presumably mesophilous Normapolles trees known only from the microfossil record (dashed line, megafossils unknown). See text for further explanations. Drawings by Bogusław Waksmundzki. Abbreviations: Ass., Assemblage; Ett., Ettingshausenia.
Fig. 6 in Late Cretaceous mega-, meso-, and microfloras from Lower Silesia
Fig. 6. Platanoid inflorescence Platananthus sp. from Żerkowice, North Sudetic Basin, Lower Silesia, Poland Assemblage 5 (upper Coniacian?– lower Santonian?). MB.Pb.2008/251a co-occurring with a Geinitzia twig (bottom left).
Data from "Robust ENSO Teleconnection to North Pacific and Southwest Coast of North America in the Late Cretaceous Greenhouse"
<p>The El Niño-Southern Oscillation (ENSO) exerts impacts on global climate through atmosphere teleconnections. Geological records from deep-time greenhouse periods suggest possible existence of past ENSO teleconnections, but the associated mechanisms for deep-time ENSO teleconnections remain unknown. Here, we investigate the teleconnection between ENSO and the southwest coast of North America (SWNA) during the Late Cretaceous based on paleoclimate simulations and sedimentary archives. We find that under the forcing from high pCO2 levels and absence of the Bering Seaway in Late Cretaceous, ENSO teleconnection to SWNA was primarily conducted by Subtropical High, rather than Aleutian Low. Consequently, the Westerlies, sensitive to changes in Subtropical High, shifted longitudinally, leading to alterations in moisture transportation to SWNA. Our study suggests that absence of Bering Seaway in the Late Cretaceous, resulted in pressure anomalies that partially inhibited the ENSO-SWNA teleconnection, but higher pCO2 levels facilitated this process through a more sensitive mid-latitude pressure system.</p>
Figure 1 in Reevaluation of the Perciformes from the Late Cretaceous Marília Formation of Brazil and its confirmation as a Siluriformes
Figure 1. – Posterior (A) and anterior (B) sides of the spine warrant its insertion on the body. The asterisk points the median foramen and axis x-y indicates the localization of the ground section. ah: articular head; aplw: articular process for the lateral wing; mcr: median crest; mdc: medular canal; pg: posterior groove; ppb: posterior process of blocking. Scale bar = 200 μm.
FIGURE 2 in Late Cretaceous Elopomorpha (Actinopterygii: Teleostei) from the Mahajanga Basin of Madagascar and impacts on paleobiogeography
FIGURE 2. Albula sp. fossils from the Maevarano Formation. A-B, occlusal and lateral view of tooth plate (UA 11388). C-D, occlusal and ventral view of dentary (DMNH EPV. 136301). Scale bars equal 1 cm.
FIGURE 38 in The osteology of the Late Cretaceous paravian Rahonavis ostromi from Madagascar
FIGURE 38. CT slices through the right astragalus and calcaneum of the holotype (UA 8656) of Rahonavis ostromi. CT slices (1) through (7) extend from the dorsal to the ventral (articular) end of the astragalus-calcaneum; in all slices cranial is up. The position of each individual CT slice is shown in the cranial view of the astragalus-calcaneum in (8). Scale bar equals 1 cm. Image in (8) is not to same scale. Morphosource link to stack data: https://doi.org/10.17602/M2/M80698. Abbreviations: ap, ascending process; cal, calcaneum.
FIGURE 7 in The osteology of the Late Cretaceous paravian Rahonavis ostromi from Madagascar
FIGURE 7. Cervicodorsal vertebra of the holotype (UA 8656) of Rahonavis ostromi. 1, left lateral view; 2, right lateral view; 3, dorsal view (cranial to left); 4, ventral view (cranial to left); 5, cranial view; 6, caudal view. Scale bar equals 1 cm. Morphosource link to mesh file: https://doi.org/10.17602/M2/M80693. Abbreviations: h, hypapophysis; ipref, infraprezygapophyseal fossa; ipostf, infrapostzygapophyseal fossa; nc, neural canal; ns, neural spine; pcdl, posterior centrodiapophyseal lamina; pf, pneumatic foramen; pp, parapophysis; ppdl, paradiapophyseal lamina; prz, prezygapophysis; tvp, transverse process.
FIGURE 6 in The osteology of the Late Cretaceous paravian Rahonavis ostromi from Madagascar
FIGURE 6. Partial left dentary (FMNH PA 740) assigned to Rahonavis ostromi. 1, medial view; 2, lateral view; 3, dorsal view (rostral to left); 4, ventral view (rostral to left); 5, transparent left lateral projection of dentary with included teeth in dark gray (caudal end not shown); enlarged µCT renderings of tooth 6 (above) and tooth 12 (below) the transparent dentary. The small numbers in (3) refer to alveolar positions. Scale bar equals 1 cm. Morphosource link to mesh file: https://doi.org/10.17602/M2/M81403. See Appendix for complete list of digital data associated with this project. Abbreviations: ag, alveolar groove; ap, apical; dia, diastema; ds, distal; lab, labial; lin, lingual; me, mesial; mf, sulcus for mental foramina; mg, Meckelian groove; sf, symphyseal surface; to, tooth; tr, tooth root.
FIGURE 22 in The osteology of the Late Cretaceous paravian Rahonavis ostromi from Madagascar
FIGURE 22. Left scapula of the holotype (UA 8656) of Rahonavis ostromi. 1, lateral view; 2, medial view (dorsal side down); 3, dorsal view; 4, ventral view; 5, proximal view (dorsal side up). The distal (posterior) end of the scapula is oriented to the right in (1) to (4). Scale bar equals 5 cm. Morphosource link to mesh file: https://doi.org/10.17602/M2/ M81206. Abbreviations: ac, acromial crest; af, acromial flange; ap, acromion process; ca, coracoid articulation; gf, glenoid fossa; tt, triceps tubercle.
FIGURE 30 in The osteology of the Late Cretaceous paravian Rahonavis ostromi from Madagascar
FIGURE 30. Left and right ischia of the holotype (UA 8656) of Rahonavis ostromi. Photographs in the top row (1-3) are of the right ischium, and photographs of the bottom row (4-6) are of the left ischium. 1 and 4, lateral views; 2 and 5, cranial views; 3 and 6, medial views. Scale bar equals 1 cm. See Appendix for complete list of Morphosource links for mesh and stack data for ischia. Abbreviations: act, acetabulum; at, antitrochanter; ia, iliac articulation; op, obturator process; pa, pubic articulation; pdp, proximodorsal process.
FIGURE 9 in The osteology of the Late Cretaceous paravian Rahonavis ostromi from Madagascar
FIGURE 9. First preserved dorsal vertebra of the holotype (UA 8656) of Rahonavis ostromi. 1, left lateral view; 2, right lateral view; 3, dorsal view (cranial to left); 4, ventral view (cranial to left); 5, cranial view; 6, caudal view. Scale bar equals 1 cm. Morphosource link to mesh file: https://doi.org/10.17602/M2/M80695. Abbreviations: ipref, infraprezygapophyseal fossa; ipostf, infrapostzygapophyseal fossa; nc, neural canal; ns, neural spine; pcdl, posterior centrodiapophyseal lamina; pf, pneumatic foramen; pp, parapophysis; ppdl, paradiapophyseal lamina; prz, prezygapophysis; poz, postzygapophysis; tvp, transverse process.
FIGURE 14 in The osteology of the Late Cretaceous paravian Rahonavis ostromi from Madagascar
FIGURE 14. Sacrum of the holotype (UA 8656) of Rahonavis ostromi. 1, left lateral view; 2, right lateral view; 3, dorsal view (cranial to left); 4, ventral view (cranial to left); 5, cranial view; 6, caudal view. Scale bar equals 1 cm. Roman numerals in figures refer to the position of selected vertebral centra. Morphosource link to mesh file: https://doi.org/10.17602/M2/M80143. Abbreviations: dns, neural spine of last dorsal vertebra; nc, neural canal; pnf, pneumatic fossa; sr, sacral spinal ridge; tvp, transverse process; vs, ventral sulcus.
FIGURE 5 in The osteology of the Late Cretaceous paravian Rahonavis ostromi from Madagascar
FIGURE 5. The alternative placements of Rahonavis ostromi within Paraves based on the phylogenetic analyses of (1) Lefèvre et al. (2017) and (2) Brusatte et al. (2014). Avialae are shown in red and unenlagiines are boxed in pale blue. Not all taxa included in these analyses are shown here. In Brusatte et al. (2014), Epidexipteryx is an oviraptorosaur and lies outside of Paraves; Lefèvre et al. (2017) recovered this taxon as a basal paravian.
FIGURE 37 in The osteology of the Late Cretaceous paravian Rahonavis ostromi from Madagascar
FIGURE 37. Right astragalus and calcaneum of the holotype (UA 8656) of Rahonavis ostromi. 1, cranial view; 2, caudal view (internal); 3, lateral view; 4, medial view; 5, distal view (lateral side to the left). Scale bar equals 1 cm. Morphosource link to mesh file: https:// doi.org/10.17602/M2/M80697. Abbreviations: ap, ascending process; ast, astragalus; cal, calcaneum.
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.