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multituberculate mammals, and new euharamiyidan species that are key elements of the Mesozoic biotic record. Recent discovery of the Yanliao Biota in the Daxishan section near the town of Linglongta, Jianchang County in western Liaoning Province have greatly enhanced our knowledge of the transition from dinosaurs to birds, primitive to derived pterosaurs, and the early evolution of mammals. Nevertheless, fundamental questions regarding the correlation of fossilbearing strata, rates of dinosaur and mammalian evolution, and their relationship to environmental change in deep time remain unresolved due to the paucity of precise and accurate temporal constraints. These limitations underscore the importance of placing the rich fossil record of Jianchang within a high-resolution chronostratigraphic framework that has thus far been hampered by the relatively low precision of in situ radioisotopic dating techniques. Here we present high-precision U-Pb zircon geochronology by the chemical abrasion isotope dilution thermal ionization mass spectrometry (CA-ID-TIMS) from three interstratified ash beds previously dated by secondary-ion mass spectrometry (SIMS) technique. The results constrain the key fossil horizons of the Daxishan section to an interval spanning 160.89 to 160.25 Ma with 2r analytical uncertainties that range from 646 to 669 kyr. These data place the Yanliao Biota from Jianchang in the Oxfordian Stage of the Late Jurassic, and mark the Daxishan section as the site of Earth's oldest precisely dated feathered dinosaurs and eutherian mammals.","publication_date":"2016,,","publication_name":"Geochemistry, Geophysics, Geosystems","grobid_abstract_attachment_id":"96451896"},"document_type":"paper","pre_hit_view_count_baseline":null,"quality":"high","language":"en","title":"High-precision U-Pb geochronology of the Jurassic Yanliao Biota from Jianchang (western Liaoning Province, China): Age constraints on the rise of feathered dinosaurs and eutherian mammals","broadcastable":false,"draft":null,"has_indexable_attachment":true,"indexable":true}}["work"]; window.loswp.workCoauthors = [53010234]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; window.loswp.designVariant = "ds_vanilla"; window.loswp.fullPageMobileSutdModalVariant = "control"; 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class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="5" data-entity-id="72500981" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/72500981/Palaeoenvironmental_reconstruction_and_biostratinomic_analysis_of_the_Jurassic_Yanliao_Lagerst%C3%A4tte_in_northeastern_China">Palaeoenvironmental reconstruction and biostratinomic analysis of the Jurassic Yanliao Lagerstätte in northeastern China</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="78591874" href="https://nju.academia.edu/QYTian">Qingyi Tian</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Palaeogeography, Palaeoclimatology, Palaeoecology, 2019</p><div 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class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="6" data-entity-id="101837340" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/101837340/Chemostratigraphy_of_the_Lower_Cretaceous_dinosaur_bearing_Xiagou_and_Zhonggou_formations_Yujingzi_Basin_northwest_China">Chemostratigraphy of the Lower Cretaceous dinosaur-bearing Xiagou and Zhonggou formations, Yujingzi Basin, northwest China</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="257674538" href="https://independent.academia.edu/MarinaSuarez46">Marina Suarez</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Vertebrate Paleontology, 2018</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Chemostratigraphy of the Lower Cretaceous dinosaur-bearing Xiagou and Zhonggou formations, Yujingzi Basin, northwest China","attachmentId":102267408,"attachmentType":"pdf","work_url":"https://www.academia.edu/101837340/Chemostratigraphy_of_the_Lower_Cretaceous_dinosaur_bearing_Xiagou_and_Zhonggou_formations_Yujingzi_Basin_northwest_China","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/101837340/Chemostratigraphy_of_the_Lower_Cretaceous_dinosaur_bearing_Xiagou_and_Zhonggou_formations_Yujingzi_Basin_northwest_China"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="7" data-entity-id="5744223" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/5744223/Mammals_from_the_Late_Jurassic_Qigu_Formation_in_the_Southern_Junggar_Basin_Xinjiang_Northwest_China">Mammals from the Late Jurassic Qigu Formation in the Southern Junggar Basin, Xinjiang, Northwest China</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="63129007" href="https://independent.academia.edu/HansulrichPfretzschner">Hans-ulrich Pfretzschner</a><span>, </span><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="8358822" href="https://zin.academia.edu/AlexanderAverianov">Alexander Averianov</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Palaeobiodiversity and Palaeoenvironments, 2010</p><p class="ds-related-work--abstract ds2-5-body-sm">Five mammalian taxa based on teeth and jaw fragments are reported from a bonebed of the Late Jurassic (Oxfordian) Qigu Formation at the Liuhuanggou site in the southern Junggar Basin. The mammals recovered to date comprise a new eleutherodontid haramiyid, the docodonts Dsungarodon and Tegotherium, an undetermined amphilestid triconodont, and a new species of the stem zatherian Nanolestes and represent the most diverse Late Jurassic mammal assemblage of Asia. The Liuhuanggou mammal assemblage is dominated by docodonts. Acuodulodon Hu et al., 2007 from the upper part of the Shishugou Formation (Oxfordian) of the Wucaiwan area in the central Junggar Basin is a junior synonym of Dsungarodon Pfretzschner and Martin, 2005. Tegotherium has been reported from the Late Jurassic Shar Teeg locality in Mongolia. With the exception of the common occurrence of Nanolestes, the mammalian assemblage from the Late Jurassic of the Guimarota coal mine (Portugal) is quite different from that of the Late Jurassic Qigu Formation. The Guimarota assemblage is dominated by five genera of dryolestidans and several genera of multituberculates, which have not been reported from the Qigu assemblage. The known Late Jurassic mammalian assemblages of Asia are similar to the Middle Jurassic assemblages known from Asia and elsewhere in the world.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Mammals from the Late Jurassic Qigu Formation in the Southern Junggar Basin, Xinjiang, Northwest China","attachmentId":34252285,"attachmentType":"pdf","work_url":"https://www.academia.edu/5744223/Mammals_from_the_Late_Jurassic_Qigu_Formation_in_the_Southern_Junggar_Basin_Xinjiang_Northwest_China","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/5744223/Mammals_from_the_Late_Jurassic_Qigu_Formation_in_the_Southern_Junggar_Basin_Xinjiang_Northwest_China"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="8" data-entity-id="33866619" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/33866619/New_Middle_Jurassic_dinosaur_track_record_from_northeastern_Sichuan_Province_China">New Middle Jurassic dinosaur track record from northeastern Sichuan Province, China</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="334233" href="https://independent.academia.edu/MikePole">Mike Pole</a></div><p class="ds-related-work--abstract ds2-5-body-sm">Two relatively small tridactyl tracks from the Middle Jurassic Xintiangou Formation of northeastern Sichuan are assigned to cf. 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Currie</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Acta Palaeontologica Polonica, 2013</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"A new basal eusauropod from the Middle Jurassic of Yunnan, China, and faunal compositions and transitions of Asian sauropodomorph dinosaurs","attachmentId":69723988,"attachmentType":"pdf","work_url":"https://www.academia.edu/52474731/A_new_basal_eusauropod_from_the_Middle_Jurassic_of_Yunnan_China_and_faunal_compositions_and_transitions_of_Asian_sauropodomorph_dinosaurs","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" 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