The Last Polar Dinosaurs: High Diversity Of Latest Cretaceous Arctic Dinosaurs In Russia

Pascal Godefroit; Lina Golovneva; Sergei Shchepetov; Geraldine Garcia; Pavel Alekseev

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The Last Polar Dinosaurs: High Diversity Of Latest Cretaceous Arctic Dinosaurs In Russia

机译：最后的极地恐龙：俄罗斯最新白垩纪北极恐龙的高度多样性

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A latest Cretaceous (68 to 65 million years ago) vertebrate microfossil assemblage discovered at Kakanaut in northeastern Russia reveals that dinosaurs were still highly diversified in Arctic regions just before the Cretaceous-Tertiary mass extinction event. Dinosaur eggshell fragments, belonging to hadrosaurids and non-avian theropods, indicate that at least several latest Cretaceous dinosaur taxa could reproduce in polar region and were probably year-round residents of high latitudes. Palaeobotanical data suggest that these polar dinosaurs lived in a temperate climate (mean annual temperature about 10 ℃), but the climate was apparently too cold for amphibians and ectothermic reptiles. The high diversity of Late Maastrichtian dinosaurs in high latitudes, where ectotherms are absent, strongly questions hypotheses according to which dinosaur extinction was a result of temperature decline, caused or not by the Chicxulub impact.

机译：在俄罗斯东北部的卡卡诺特发现的最新白垩纪（68至6500万年前）脊椎动物微化石组合显示，在白垩纪-第三纪大灭绝事件发生之前，北极地区的恐龙仍然高度多样化。恐龙的蛋壳碎片属于鸭嘴龙和非禽兽脚类动物，表明至少有几个最新的白垩纪恐龙分类群可以在极地繁殖，并且可能是全年高纬度地区的居民。古植物学数据表明，这些极地恐龙生活在温带气候中（平均年温度约为10℃），但对于两栖动物和外热爬行动物而言，气候显然太冷了。在高纬度地区，缺乏等温放热的晚期马斯特里赫特恐龙的高度多样性，强烈质疑这样的假设，即恐龙灭绝是由于Chicxulub撞击造成或不引起的温度下降的结果。

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来源
《Naturwissenschaften》 |2009年第4期|495-501|共7页
作者
Pascal Godefroit; Lina Golovneva; Sergei Shchepetov; Geraldine Garcia; Pavel Alekseev;
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作者单位

Department of Palaeontology, Royal Belgian Institute of Natural Sciences, rue Vautier 29, 1 000 Brussels, Belgium;

Komarov Botanical Institute, Russian Academy of Sciences, Prof. Popov street 2, St. Petersburg 197 376, Russia;

Komarov Botanical Institute, Russian Academy of Sciences, Prof. Popov street 2, St. Petersburg 197 376, Russia;

Institut International de Paleoprimatologie et Paleontologie Humaine, Evolution et Paleoenvironnements, Faculte des Sciences, CNRS UMR 6046-IPHEP, Universite de Poitiers, 40 Avenue du Recteur Pineau, 86 022 Poitiers Cedex, France;

Komarov Botanical Institute, Russian Academy of Sciences, Prof. Popov street 2, St. Petersburg 197 376, Russia;

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正文语种 eng
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关键词
polar dinosaurs; late cretaceous; extinction; russia;

机译：极地恐龙;白垩纪晚期;灭绝;俄罗斯;

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1. The last polar dinosaurs: high diversity of latest Cretaceous arctic dinosaurs in Russia [J] . Pascal Godefroit, Lina Golovneva, Sergei Shchepetov, Naturwissenschaften . 2009,第4期

机译：最后的极地恐龙：俄罗斯最新白垩纪北极恐龙的高度多样性
2. The First Find of an Ungual Phalanx of a Dromaeosaurid Dinosaur (Dinosauria: Dromaeosauridae) from the Blagoveshchensk Area of Late Cretaceous Dinosaurs (Amur Region, Russia) [J] . Bolotskii I. Yu., Bolotskii Yu. L., Sorokin A. P. Doklady Earth Sciences . 2019,第PTa1期

机译：从晚白垩世恐龙（俄罗斯阿穆尔州）的布拉戈维申斯克地区发现的Dromaeosaurid恐龙（Dinosauria：Dromaeosauridae）的不明趾骨的首次发现。
3. The First Find of an Ungual Phalanx of a Dromaeosaurid Dinosaur (Dinosauria: Dromaeosauridae) from the Blagoveshchensk Area of Late Cretaceous Dinosaurs (Amur Region, Russia) [J] . Bolotskii I. Yu., Bolotskii Yu. L., Sorokin A. P. Doklady Earth Sciences . 2019,第PTa1期

机译：来自Dromaeosaurid恐龙（Dinosauria：Dromaeosauridae）的第一个查找来自晚餐恐龙的Blagoveshchensk地区（俄罗斯Amur Region）的Blagoveshchensk地区
4. LATEST CRETACEOUS HADROSAURID DINOSAURS FROM HEILONGJIANG PROVINCE (P. R. CHINA) AND AMUR REGION (FAR EASTERN RUSSIA) [C] . A.Aret, A.Sapar, R.Poolam(a)e, Heyuan International Dinosaur Symposium . 2005

机译：黑龙江省（中国）和阿穆尔地区（远东俄罗斯）的最新白垩纪硬毛龙恐龙
5. Regional geochemical mapping of the Superior Upland Province; ichnology of the Cretaceous Mesilla Valley Formation, Cerro de Cristo Rey; a new ichnospecies of cardioichnus from the Cretaceous (Albian) of New Mexico; a pedagogy for the Cerro de Cristo Rey Tracksite; walking in the footprints of dinosaurs: Teaching sense of place in El Paso, TX [D] . Kappus, Eric 2016

机译：上陆高地省的区域地球化学测绘； Cerro de Cristo Rey的白垩纪Mesilla谷地层的岩石学来自新墨西哥州白垩纪（阿尔比亚）的一种新的心鳞科鱼类； Cerro de Cristo Rey Tracksite的教学法；在恐龙的足迹中行走：教学在德克萨斯州埃尔帕索的地方感
6. A New Ankylosaurid Dinosaur from the Upper Cretaceous (Kirtlandian) of New Mexico with Implications for Ankylosaurid Diversity in the Upper Cretaceous of Western North America [O] . Victoria M. Arbour, Michael E. Burns, Robert M. Sullivan, -1

机译：来自新墨西哥州上白垩统（基尔特人）的新甲龙恐龙对北美西部上白垩纪的甲龙有多样性的启示
7. Herd structure in Late Cretaceous polar dinosaurs: A remarkable new dinosaur tracksite, Denali National Park, Alaska, USA [O] . Anthony R. Fiorillo, Stephen T. Hasiotis, Yoshitsugu Kobayashi 2014

机译：牛群结构在晚餐恐龙：一个非凡的新恐龙轨道马塔，Denali国家公园，阿拉斯加，美国

The Last Polar Dinosaurs: High Diversity Of Latest Cretaceous Arctic Dinosaurs In Russia

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