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340 results for “Late Oligocene”
Data from: A new basal chaeomysticete (Mammalia: Cetacea) from the late Oligocene Pysht Formation of Washington, USA
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Data from: Late Oligocene caviomorph rodents from Contamana, Peruvian Amazonia
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Data from: Morphological diversification of ampullariid gastropods (Nsungwe Formation, late Oligocene, Rukwa Rift Basin, Tanzania) is coincident with onset of East African rifting
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Data from: The late Oligocene Xenarthran fauna of Quebrada Fiera (Mendoza, Argentina) and its implications for sloth origins and the diversity of Paleogene Cingulates
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Data from: The early history of Annonaceae (Magnoliales) in Southeast Asia suggests floristic exchange between India and Pan-Indochina by the late Oligocene
The collision between India and Eurasia in the mid‐Palaeogene facilitated terrestrial floristic exchange. However, due to the complexity of this geological event and scarcity of fossil record, the plant migration patterns between the two plates are still highly debated. In this study, we focus on the Oligocene floristic exchange between India and Pan‐Indochina mainly based on a carpological study of Annonaceae, an emblematic family unique in its pantropical distribution and frugivore‐based dispersal strategy. A new seed species, Anonaspermum orientalis sp. nov., is described from the upper Oligocene Yongning Formation of Guangxi, southern China. The species represents the earliest known occurrence of this family in Pan‐Indochina. The specimens are characterized by ovate–elliptic seed shape, thicker seed testa, two‐lobed organization, lamelliform rumination and an obvious cone‐like plug. The palaeobiogeographical reconstruction of Annonaceae indicates that the most parsimonious dispersal scenario for the annonaceous taxon from the late Oligocene of China is the Out‐of‐India route, in parallel with other plant genera inferred to have migrated between India and Pan‐Indochina during that period.
Figure 31 in Bipedal browsing adaptations of the unusual Late Eocene-earliest Oligocene tylopod Anoplotherium (Artiodactyla, Mammalia)
Figure 31. Reconstruction of the Ham 3 A. latipes skeleton in quadrupedal stance, supplemented by some elements from A. commune specimens from the Gypse of Montmartre and Antony (especially parts of the vertebral column – see text) and from scaled up A. laurillardi specimens from the Quercy Phosphorites (cranium, MNHN.Qu399) and La Débruge (dentary, BMNH.30622). Left lower forelimb and pes shown at maximum extension relative to humerus and tibia + fibula, respectively. Forelimbs pronated. Scale bar = 100 mm.
Figure 29 in Bipedal browsing adaptations of the unusual Late Eocene-earliest Oligocene tylopod Anoplotherium (Artiodactyla, Mammalia)
Figure 29. Bipedal browsing adaptations in living and extinct mammal genera, expanded from Coombs (1983: fig. 4).
Figure 9 in A late Oligocene waipatiid dolphin (Odontoceti: Waipatiidae) from Victoria, Australia
Figure 9. Humeri of NMV P48861, Waipatiidae gen. et sp. indet. Left humerus in: A, medial; B, anterior; C, posterior; and D, proximal views. Right humerus in: E, lateral; and F, medial views. Specimens whitened with ammonium chloride.
FIGURE 12 in New dragonflies and damselflies (Odonata) from the late Oligocene of Enspel (Rhineland-Palatinate, SW Germany)
FIGURE 12. Naiads of Odonata from paleolake Enspel. 1–3, Naiads attributable to the libelluloid clade. 1, PE 2006/ 5022-LS; 2, PE 2010/5637-LS; 3, PE 2010/5657-LS; 4, PE 2010/5637-LS, a zygopteran naiad. Scale bars are 5 mm (1–3), 2 mm (4).
FIGURE 11 in New dragonflies and damselflies (Odonata) from the late Oligocene of Enspel (Rhineland-Palatinate, SW Germany)
FIGURE 11. Oligolestes stoeffelensis sp. nov., holotype PE 1995/9164-LS. 1, Photograph of habitus; 2, Hind wing, Arc arculus, d discoidal cell, N nodus, Sn subnodus. Scale bar is 10 mm.
FIGURE 10 in New dragonflies and damselflies (Odonata) from the late Oligocene of Enspel (Rhineland-Palatinate, SW Germany)
FIGURE 10. Ictinogomphus engelorum sp. nov., interpretative drawings of wings. 1, Holotype PE 2000/5006-LS a, hind wing; 2, Paratype, PE 2003/5039-LS a, distal part of wing; 3, Paratype, PE 2003/5040-LS, part of forewing. Scale bars are 10 mm.
FIGURE 6 in New dragonflies and damselflies (Odonata) from the late Oligocene of Enspel (Rhineland-Palatinate, SW Germany)
FIGURE 6. Epiaeschna wisseri sp. nov., interpretative drawings of hind wings. 1, holotype, PE 2000/5355-LS a; 2, putative conspecific specimen, PE 1997/6211-LS a, female hind wing. Scale bars are 10 mm.
FIGURE 3 in New dragonflies and damselflies (Odonata) from the late Oligocene of Enspel (Rhineland-Palatinate, SW Germany)
FIGURE 3. Oligaeschna cf. jungi, interpretative drawings of wings. 1, PE 2005/5032-LS a, left forewing; 2, PE 2005/ 5032-LS a, right forewing; 3, PE 2000/5000-LS a, forewing; 4, PE 1995/7217-LS, forewing. Scale bars are 10 mm.
FIGURE 1 in New dragonflies and damselflies (Odonata) from the late Oligocene of Enspel (Rhineland-Palatinate, SW Germany)
FIGURE 1. Oligaeschna cf. jungi, specimen PE 2005/5032-LS a. 1, Overall view of fossil with two forewings, remains of the thorax, and one leg; 2, Left forewing enlarged; 3, Right forewing enlarged. Scale bars are 10 mm.
Morphometric Analysis of Coccolithophore genus Reticulofenestra during late Eocene to early Oligocene
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Figure 12 in Craniodental anatomy of late Oligocene archaeohyracids (Notoungulata, Mammalia) from Bolivia and Argentina and new phylogenetic hypotheses
Figure 12. Archaeohyrax suniensis sp. nov., deciduous upper dentition and slightly worn M1. A, left dP3-4, SAL 480. B, right P3, dP4, M1 (reversed), SAL 471. C, right dP2-4, M1 (reversed), YPM-PU 22061. Mesial to left and labial at the top. Scale bar = 1 cm.
Figure 5 in Craniodental anatomy of late Oligocene archaeohyracids (Notoungulata, Mammalia) from Bolivia and Argentina and new phylogenetic hypotheses
Figure 5. Archaeohyrax suniensis sp. nov., paratype, rostrum, SAL 183. A, ventral view. B, dorsal view. C, right lateral view. Scale bar = 1 cm.
Figure 9 in Craniodental anatomy of late Oligocene archaeohyracids (Notoungulata, Mammalia) from Bolivia and Argentina and new phylogenetic hypotheses
Figure 9. Archaeohyrax suniensis sp. nov., incomplete posterior part of the skull, SAL 551. Ventral view. Scale bar = 1 cm.
Figure 1 in Craniodental anatomy of late Oligocene archaeohyracids (Notoungulata, Mammalia) from Bolivia and Argentina and new phylogenetic hypotheses
Figure 1. Teeth measurements, illustration of the method. A, upper cheekteeth, SAL 189, left maxilla with P3-M3. B, lower cheekteeth, SAL 309, right mandible with p3-m2. Mesial to right. Scale bar = 1 cm.
Figure 10 in Craniodental anatomy of late Oligocene archaeohyracids (Notoungulata, Mammalia) from Bolivia and Argentina and new phylogenetic hypotheses
Figure 10. Archaeohyrax suniensis sp. nov., isolated slightly worn premolars. A, YPM-PU 23788, left P4 (?). B, YPM-PU 23789, right P4 (?). Mesial to left and labial at the top. Scale bar = 1 cm.
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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)
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.