摘要
Amber from Kachin,Myanmar offers a unique window into mid-Cretaceous ecosystems because it provides large sample sets that span a wide range of taxa preserved in exquisite detail at approximately 99 Ma[1].A fringe benefit of such extensive sampling is that inclusions rarely captured in other amber deposits are represented in Kachin amber—even subaquatic taxa.Recent studies have documented inclusions of fully marine groups,such as ammonites[2]and bivalves[3].
产自缅甸克钦的琥珀精美保存了各类动物化石,为深入研究白垩纪中期(约99 Ma)的生态系统提供了一个独特的窗口.克钦琥珀中甚至发现了半水生动物等其他琥珀产地暂无报道的罕见类群.最新研究表明,除了与淡水栖息地密切相关的众多陆生昆虫等类群以外,克钦琥珀中还保存了菊石类、双壳类、海百合及珊瑚等海生动物类群.这一组合表明,克钦琥珀记录了当时多种类型的动物栖息环境,如:在边缘海洋环境(类似红树林的环境)中生长着盛产琥珀的森林(很可能是柏树林),而琥珀沉积物在形成后便逐渐堆积于海湾或河口等近海海洋环境中.本文使用光学显微镜、同步辐射和micro-CT等研究手段,报道和描述克钦琥珀中产出的虾类动物,并从古生态学和分类学的角度进行探讨.在这项工作之前,仅从墨西哥恰帕斯州的中新世琥珀中发现过一个虾类样品.本文报道的标本是克钦琥珀中产出的首个十足类甲壳动物,在数量和种类上丰富了该产地淡水甲壳动物的产出,并将对琥珀中虾类动物的记录提前了大约8000万年.
作者
Lida Xing
Yu Liu
Ryan C.McKellar
Javier Luque
Gang Li
Yanping Wang
Qiru Yi
Rui Sun
Enze Wang
Denis Audo
邢立达;刘煜;Ryan C.McKellar;Javier Luque;黎刚;王艳萍;易栖如;孙瑞;王恩泽;Denis Audo(State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Beijing 100083,China;School of the Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China;Yunnan Key Laboratory for Palaeobiology,Institute of Palaeontology,Yunnan University,Kunming 650500,China;MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment,Yunnan University,Kunming 650500,China;Royal Saskatchewan Museum,Regina,Saskatchewan S4P 4W7,Canada;Biology Department,University of Regina,Regina,Saskatchewan S4S 0A2,Canada;Department of Ecology and Evolutionary Biology,University of Kansas,Lawrence KS 66045,USA;Museum of Comparative Zoology,Department of Organismic and Evolutionary Biology,Harvard University,Cambridge MA 02138,USA;Department of Earth&Planetary Sciences,Yale University,New Haven CT 06520-8109,USA;Smithsonian Tropical Research Institute,Balboa-Ancon 0843-03092,Panama;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Palaeobiology and Stratigraphy,Center for Excellence in Life and Paleoenvironment,Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences,Nanjing 210008,China;Centre de Recherche en Paléontologie,Sorbonne Université,Muséum national d’Histoire naturelle,Paris F-75005,France)
基金
This work was supported by the National Natural Science Foundation of China(31672345,41790455,41772008,and 41861134032)
the Scientific Research Equipment Development Project of Chinese Academy of Sciences(YZ201509)
the Natural Science Foundation of Yunnan,China(2015HA021,2018FA025,2018IA073,and 2019DG050)
the Natural Sciences and Engineering Research Council of Canada(2015-00681)
the National Geographic Society,USA(EC0768-15).
