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A new look at the first dinosaur discovered in Antarctica:reappraisal of Antarctopelta oliveroi(Ankylosauria:Parankylosauria)

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Advances in Polar Science 2024年第1期35卷 78-107页

作者： sergio soto acuÑA Alexander OVARGAS Jonatan KALUZA Red Paleontológica U-Chile Departamento de BiologíaFacultad de CienciasUniversidad de ChileÑuñoa 7800003Chile Escuela de Geología Facultad de CienciasIngeniería y TecnologíaUniversidad MayorProvidenciaSantiago 7500994Chile Fundación de Historia Natural Félix de Azara Universidad MaimónidesBuenos Aires C1405Argentina Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET) Buenos Aires C1425FQBArgentina

The first dinosaur discovered in the Antarctic continent was the ankylosaur Antarctopelta oliveroi in the ***,since then several hypotheses of phylogenetical relationships have been proposed because these have been depended on how the skeletal remains have been *** main obstacle for clarifying its phylogenetic position is that many portions of the skeleton remain unknown,in addition to the presence of unknown characters in typical *** an ankylosaurid,nodosaurid,or even a chimaera,a recent proposal based on mostly complete material of a new ankylosaur from Chilean Patagonia provided support for a novel phylogenetic hypothesis:Antarctopelta and other southern ankylosaurs are an early branching clade,the Parankylosauria,whose origin probably dates to the Late *** the light of this new view,a redescription of the available skeletal remains is provided together with a new reconstruction of the first Antarctic dinosaur known to the science community.

关键词： Antarctic Peninsula Biogeographic Weddellian Province Parankylosauria Antarctopelta

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A new look at the first dinosaur discovered in Antarctica: reappraisal of Antarctopelta oliveroi(Ankylosauria: Parankylosauria)

引用

Advances in Polar Science 2024年

作者： sergio soto acu?A Alexander O.VARGAS Jonatan KALUZA Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Red Paleontológica U-Chile，Departamento de Biología， Facultad de Ciencias， Universidad de Chile Fundación de Historia Natural Félix de Azara， Universidad Maimónides Escuela de Geología，Facultad de Ciencias， Ingeniería y Tecnología， Universidad Mayor， Providencia

The first dinosaur discovered in the Antarctic continent was the ankylosaur Antarctopelta oliveroi in the 1980s. Nevertheless， since then several hypotheses of phylogenetical relationships have been proposed because these have been depended on how the skeletal remains have been interpreted. The main obstacle for clarifying its phylogenetic position is that many portions of the skeleton remain unknown， in addition to the presence of unknown characters in typical ankylosaurs. Considered an ankylosaurid， nodosaurid， or even a chimaera， a recent proposal based on mostly complete material of a new ankylosaur from Chilean Patagonia provided support for a novel phylogenetic hypothesis: Antarctopelta and other southern ankylosaurs are an early branching clade， the Parankylosauria， whose origin probably dates to the Late Jurassic. In the light of this new view， a redescription of the available skeletal remains is provided together with a new reconstruction of the first Antarctic dinosaur known to the science community.

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Bleeding risk stratification in an era of aggressive management of acute coronary syndromes

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World Journal of Cardiology 2014年第11期6卷 1140-1148页

作者： Emad Abu-Assi sergio Raposeiras-Roubín José María García-acua José Ramón González-Juanatey Department of Cardiology University Clinical Hospital of Santiago de Compostela 15071 Santiago de Compostela Spain

Major bleeding is currently one of the most common non-cardiac complications observed in the treatment of patients with acute coronary syndrome(ACS). Hemorrhagic complications occur with a frequency of 1% to 10% during treatment for ACS. In fact, bleeding events are the most common extrinsic complication associated with ACS therapy. The identification of clinical characteristics and particularities of the antithrombin therapy associated with an increased risk of hemorrhagic complications would make it possible to adopt prevention strategies, especially among those exposed to greater risk. The international societies of cardiology renewed emphasis on bleeding risk stratification in order to decide strategy and therapy for patients with ACS. With this review, we performed an update about the ACS bleeding risk scores most frequently used in daily clinical practice.

关键词： Bleeding acute coronary syndrome Risk scores Can Rapid risk stratification of Unstable angina patients Suppress ADverse outcomes with Early implementation of the ACC/AHA guidelines acute Coronary Treatment and Intervention Outcomes Network

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