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1,817 results for “Late Cretaceous”
FIGURE 1. A in A Composite Section of Fossiliferous Late Cretaceous- Early Paleogene Localities in Senegal and Preliminary Description of a New Late Maastrichtian Vertebrate Fossil Assemblage
FIGURE 1. A, Regional geologic map of western Senegal indicating names and ages of geologic formations exposed (after Roger et al., 2009), with black box indicating area under study (expanded in B). B, Positions of the four localities of the Ndayane/Poponguine area described in this paper: 1, Cap de Naze; 2, North Quarry of Poponguine; 3, Ndayane Cliff at Poponguine; and 4, Islet of Poponguine. All are in close proximity despite the variation in lithology among them. C, Position of field area in the Senegalese–Mauritanian Basin in western Senegal, West Africa.
FIGURE 2 in A Composite Section of Fossiliferous Late Cretaceous- Early Paleogene Localities in Senegal and Preliminary Description of a New Late Maastrichtian Vertebrate Fossil Assemblage
FIGURE 2. Composite of formation names for Late Cretaceous–Early Paleogene rocks of western Senegal.
FIGURE 4 in A Composite Section of Fossiliferous Late Cretaceous- Early Paleogene Localities in Senegal and Preliminary Description of a New Late Maastrichtian Vertebrate Fossil Assemblage
FIGURE 4. The four units visible at the Cap de Naze Cliff locality with the end Campanian Paki Formation and the Late Maastrichtian Cap de Naze Formation cropping out under a Pliocene capping. A, units 1–4 (figure modified from Cuny et al., 2012: fig. 2) and B, units 1–3.
Fig. 2. Holasteroid echinoid Echinocorys jaekeli Nietsch, 1921 in Suspected foraminiferan parasitism on a Late Cretaceous echinoid host recorded by the new attachment trace fossil Solichnus aestheticus
Fig. 2. Holasteroid echinoid Echinocorys jaekeli Nietsch, 1921 (MGUH 34117) from the upper Campanian of Hvideklint, Møn, Denmark; carrying the type series of the new foraminiferan attachment trace fossil Solichnus aestheticus igen. et isp. nov. Anterior (A1) and posterior (A2) views of the original specimen and the respective views (A3, A4) of a textured 3D digital surface model with the positions of the holotype (h; MGUH 34117a) and the seven paratypes (p1–7; MGUH 34117b–h) of Solichnus aestheticus igen. et isp. nov.; an interactive viewer with this digitype can be accessed online via Sketchfab at https://skfb.ly/oAEIA.
Fig. 1. Location and stratigraphy. A in Suspected foraminiferan parasitism on a Late Cretaceous echinoid host recorded by the new attachment trace fossil Solichnus aestheticus
Fig. 1. Location and stratigraphy. A. Hvideklint is located on the southern shore of the island of Møn in eastern Denmark. B. Schematic representation of the Campanian to Maastrichtian stratigraphy of eastern Denmark (modified after Surlyk et al. 2013).
Fig. 3 in Suspected foraminiferan parasitism on a Late Cretaceous echinoid host recorded by the new attachment trace fossil Solichnus aestheticus
Fig. 3. Type specimens of the new foraminiferan attachment trace fossil Solichnus aestheticus igen. et isp. nov. from the upper Campanian of Hvideklint, Møn, Denmark. A. The holotype trace (MGUH 34117a), photographed after (A1) and before (A2) coating with ammonium chloride, showing the extent of the diagnostic radiating canals and their interference with those of neighbouring paratypes. Close-up of the central depression of the holotype (A3) with echinoid regeneration texture (newly formed tubercles). Backscatter electron SEM image of the central depression of the holotype (A4); note that →
Fig. 9 in Dimorphism in Late Cretaceous ammonites- evidence from early Turonian ammonite faunas of the Briessnitz Formation in Saxony, Germany
Fig. 9. Acanthoceratid ammonoid Spathites (Jeanrogericeras) reveliereanus (Courtiller, 1860) MMG: SaK 16896 from the lower Turonian of the Briessnitz Formation, Leubnitz, Germany. A. Outer whorl in ventral (A1), lateral (A2), and apertural (A3) views; the fracture at which the outer whorl separates from the inner whorl (arrow) and an umbilical tubercle (UT) are marked. B. Inner whorl in lateral (B1, B3) and apertural (B2) views; the umbilical tubercle (UT) and the position of the fracture shown in A2 are marked by arrow.
Fig. 6 in Dimorphism in Late Cretaceous ammonites- evidence from early Turonian ammonite faunas of the Briessnitz Formation in Saxony, Germany
Fig. 6. Statistical test of potential dimorphism in Mammites nodosoides (Schlüter, 1871) based on 119 specimens. The repository number of each specimen is given on top of the diagram. A. Classical clustering; the red color characterises particularly small individuals with D = 33–65 mm in between the large group of potential microconchs. B. Linear discriminant analysis (LDA); the color code follows the assignment of the classical clustering above. The dark blue lines are biplots of all variables, an overlaying of a score plot and a loadings plot in a single graph, which enables to visualise high-dimensional data by using a two-dimensional graph.
Fig. 2 in Dimorphism in Late Cretaceous ammonites- evidence from early Turonian ammonite faunas of the Briessnitz Formation in Saxony, Germany
Fig. 2. Ammonite morphological terms and key parameters. Modified after Wilmsen and Nagm (2014). Abbreviations: D, maximum diameter; d, larger radius of the shell; e, smaller radius of the shell; UD, diameter of the umbilicus; Wb, whorl breadth of the final whorl; Wh, height of the final whorl; for the suture line: A, adventive lobe; E, external lobe; U, umbilical lobe.
Fig. 1 in Dimorphism in Late Cretaceous ammonites- evidence from early Turonian ammonite faunas of the Briessnitz Formation in Saxony, Germany
Fig. 1. Geological framework and stratigraphy of the lower Elbtal Group. A. Distribution of the Elbtal Group (green) in the area between Meissen and the German/Czech Republic border. B. Palaeogeographic setting of the Saxonian Cretaceous Basin (SCB). C. Chrono-, bio- and lithostratigraphy of the lower Elbtal Group in the area between Meissen and Dresden; the stratigraphic position of the ammonite faunas from the Briessnitz Formation is indicated. Supplemented and modified after Wilmsen et al. (2019, 2022) and Niebuhr et al. (2020). Abbreviations: A., Acanthoceras; Cunningt., Cunningtoniceras; M., Metoicoceras; mid., middle; Neocard., Neocardioceras.
Fig. 4 in A new gigantic titanosaurian sauropod from the early Late Cretaceous of Patagonia (Neuquén Province, Argentina)
Fig. 4. Axial skeleton of the titanosaurian sauropod Bustingorrytitan shiva gen. et sp. nov. from "Bustingorry II" site, Neuquén Province, Argentina, upper Cenomanian. A. Right dentary (holotype, MMCH-Pv 59/1) in medial (A1) and dorsal (A2) views (numbers indicate alveoli with partial teeth). B. Mid to posterior cervical vertebra (paratype, MMCH-Pv 60/1) in right ventro-lateral (B1) and anterior (B2) views. C. Sixth? or seventh? dorsal vertebra (holotype, MMCH-Pv 59/3) in left lateral (C1), anterior (C2), and posterior (C3) views. D. Haemal arch (holotype, MMCH-Pv 59/8) in right lateral (D1) and anterior (D2) views. E. Anterior caudal vertebra (holotype, MMCH-Pv 59/4) in left lateral (E1), anterior (E2), and posterior (E3) views. F. Mid-caudal vertebra (holotype, MMCH-Pv 59/6) in left lateral (F1), anterior (F2), and posterior (F3) views. G. Posterior caudal vertebra (paratype, MMCH-Pv 60/2) in anterior (G1) and left lateral (G2) views. Abbreviations: acdl, anterior centrodiapophyseal lamina; acpl, anterior centroparapophyseal lamina; a-spdl, anterior ramus of the spinodiapophyseal lamina; cpaf, centroparapophyseal fossa; cpol, centropostzygapophyseal lamina; cprl: centroprezygapophyseal lamina; d, diapophysis; hy, hyposphene; hyp, hypantrum; ns, neural spine; p, parapophysis; pacdf, parapophyseal centrodiapophyseal fossa; pcdl, posterior centrodiapophyseal lamina; pcpl, posterior centroparapophyseal lamina; pl, pleurocoel; pocdf, postzygapophyseal centrodiapophyseal fossa; podl, postzygodiapophyseal lamina; posdf, postzygapophyseal spinodiapophyseal fossa; prdl, prezygodiapophyseal lamina; prsl, prespinal lamina; prz, prezygapophysis; p-spdl, posterior ramus of the spinodiapophyseal lamina; sf, splenial furrow; spdl-f, spinodiapophyseal lamina fossa; spol, spinopostzygapophyseal lamina; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina.
Fig. 6 in A new gigantic titanosaurian sauropod from the early Late Cretaceous of Patagonia (Neuquén Province, Argentina)
Fig. 6. Pelvic and hindlimb elements of the titanosaurian sauropod Bustingorrytitan shiva gen. et sp. nov. from "Bustingorry II" site, upper Cenomanian. A. Right ilium (holotype, MMCH-Pv 59/16) in medial view. B. Right pubis (holotype, MMCH.Pv 59/19) in medial view. C. Proximal portion of right tibia (holotype, MMCH-Pv 59/31) in proximal (C1) and lateral (C2) views. D. Left tibia (paratype, MMCH-Pv 60/6) in proximal (D1), lateral (D2), and distal (D3) views. E. Proximal portion of right femur (holotype, MMCH-Pv 59/30) in anterior view. F. Distal portion of right femur (paratype, MMCH-Pv 60/5) in anterior (F1) and distal (F2) views. G. Proximal portion of right fibula (holotype, MMCH-Pv 59/32) in lateral view. H. Right phalange ungual II (holotype, MMCH-Pv 59/39) in lateral (reversed) (H1) and plantar (H2) views. I. Left astragalus (holotype, MMCH-Pv 59/34) in anterior (I1), lateral (I2), posterior (I3), distal (I4), and medial (I5) views. J. Left metatarsal I (holotype, MMCH-Pv 59/35) in dorsal (J1), medial (J2), proximal (J3) and distal (J4) views. Abbreviations: ac, acetabulum; af, articulation for the fibula; ai, articulation for the ilium; ap, ascending process; at, articulation for the tibia.
Fig. 2 in A new gigantic titanosaurian sauropod from the early Late Cretaceous of Patagonia (Neuquén Province, Argentina)
Fig. 2. Simplified section of the site showing the stratigraphical position of Bustingorrytitan shiva gen. et sp. nov. (modified from Otero et al. 2011).
Fig. 1. A in A new gigantic titanosaurian sauropod from the early Late Cretaceous of Patagonia (Neuquén Province, Argentina)
Fig. 1. A. General location map of Neuquén Province. B. Location of the fossiliferous site (asterisk) in the surroundings of Villa El Chocón, Neuquén Province (modified from Otero et al. 2011).
Fig. 5 in Dimorphism in Late Cretaceous ammonites- evidence from early Turonian ammonite faunas of the Briessnitz Formation in Saxony, Germany
Fig. 5. Photographic illustration of typical large (A) and small (B) specimens of the acanthoceratid ammonoid Mammites nodosoides (Schlüter, 1871) from the lower Turonian of the Briessnitz Formation, Leubnitz, Germany. A. MMG: SaK 5200 in lateral (A1) and apertural (A2) views. B. MMG: SaK 5203 in lateral (B1, B3) and apertural (B2) views.
Fig. 7 in A new gigantic titanosaurian sauropod from the early Late Cretaceous of Patagonia (Neuquén Province, Argentina)
Fig. 7. Strict consensus of the phylogenetic analysis, after pruning the unstable taxa, showing the different alternative positions of Andesaurus (asterisk). Bremer support values higher than 1 are shown. Note: to save space only the part of the cladogram from Patagosaurus onwards is shown.
Fig. 7 in Dimorphism in Late Cretaceous ammonites- evidence from early Turonian ammonite faunas of the Briessnitz Formation in Saxony, Germany
Fig. 7. Photographic illustration of typical large (A) and small (B) specimens of the acanthoceratid ammonoid Spathites (Jeanrogericeras) reveliereanus (Courtiller, 1860) from the lower Turonian of the Briessnitz Formation, Leubnitz, Germany. A. MMG: SaK 5230 in lateral (A1) and apertural (A2) views. B. MMG: SaK 5256 in lateral (B1, B3) and ventral (B2) views.
Fig. 3 in A new gigantic titanosaurian sauropod from the early Late Cretaceous of Patagonia (Neuquén Province, Argentina)
Fig. 3. Spatial distribution of skeletal elements of the titanosaurian sauropod Bustingorrytitan shiva gen. et sp. nov. from "Bustingorry II" site, Neuquén Province, Argentina, upper Cenomanian. Numbers correspond to MMCH-Pv specimens. The solid lines correspond to the materials extracted in the first field works February 1–10, 2001 (when the bones overlap in some sector, it is continued with stippled lines). The materials extracted during the second and third field works (November 30–December 9, 2001, and December 15–22, 2001), are indicated by dotted lines.
Fig. 4 in Dimorphism in Late Cretaceous ammonites- evidence from early Turonian ammonite faunas of the Briessnitz Formation in Saxony, Germany
Fig. 4. Statistical test of potential dimorphism in Lewesiceras peramplum (Mantell, 1822) based on 63 specimens. The repository number of each specimen is given on top of the diagram. A. Classical clustering; the red color characterises particularly small individuals with D <77 mm in between the group of potential microconchs. B. Linear discriminant analysis (LDA); the color code follows the assignment of the classical clustering above. The dark blue lines are biplots of all variables, an overlaying of a score plot and a loadings plot in a single graph, which enables to visualise high-dimensional data by using a two-dimensional graph.
Fig. 10 in Dimorphism in Late Cretaceous ammonites- evidence from early Turonian ammonite faunas of the Briessnitz Formation in Saxony, Germany
Fig. 10. Representative antidimorphs: [m] = microconch, [M] = macroconch of the acanthoceratid ammonoid Spathites (Jeanrogericeras) reveliereanus Courtiller, 1860); based on (A) MMG: SaK 5256 in lateral (A1) and apertural (A2) views and (B) MMG: SaK 5230 in lateral (B1) and apertural (B2) views. Key features of both antidimorphs are listed (see text for further explanation).
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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)
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DANDI Archive for NWB datasets
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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.