An Updated Review of the Middle‐Late Jurassic Yanliao Biota: Chronology, Taphonomy, Paleontology and Paleoecology
An Updated Review of the Middle‐Late Jurassic Yanliao Biota: Chronology, Taphonomy, Paleontology and Paleoecology
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DOI：
10.1111/1755-6724.13033
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发表时间：
2016-12
期刊：
影响因子：
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通讯作者：
Xing Xu;Zhonghe Zhou;C. Sullivan;Y. Wang;D. Ren
中科院分区：
文献类型：
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作者：
Xing Xu;Zhonghe Zhou;C. Sullivan;Y. Wang;D. Ren
中国东北部燕辽生物群（有时称为道虎沟生物群）包括大量非海洋生物的化石，经常出现在辽宁西部、北方和内蒙古东南部的中-上侏罗纪地层中。该生物群持续了约1000万年，分为两个阶段：奥陶纪-卡洛纪道虎沟阶段（约1.68 - 1.64亿年前）和牛津纪玲珑塔阶段（1.64 - 1.59亿年前）。岩寮化石在埋藏学上通常是例外的（例如，许多脊椎动物的骨骼是完整的，并伴有保存完好的外皮特征），不仅在分类学上是多样的，而且还包括许多植物，无脊椎动物和脊椎动物的最古老的已知代表。这些化石提供了关于跳蚤、鸟类和哺乳动物等分支的起源和早期演化的重要新信息，以及羽毛等主要生物结构的演化，并证明了中国东北地区在中晚侏罗世边界附近存在复杂的陆地生态系统。
The northeastern Chinese Yanliao Biota (sometimes called the Daohugou Biota) comprises numerous, frequently spectacular fossils of non‐marine organisms, occurring in Middle‐Upper Jurassic strata in western Liaoning, northern Hebei, and southeastern Inner Mongolia. The biota lasted for about 10 million years, divided into two phases: the Bathonian‐Callovian Daohugou phase (about 168–164 million years ago) and the Oxfordian Linglongta phase (164–159 million years ago). The Yanliao fossils are often taphonomically exceptional (many vertebrate skeletons, for example, are complete and accompanied by preserved integumentary features), and not only are taxonomically diverse but also include the oldest known representatives of many groups of plants, invertebrates, and vertebrates. These fossils have provided significant new information regarding the origins and early evolution of such clades as fleas, birds, and mammals, in addition to the evolution of some major biological structures such as feathers, and have demonstrated the existence of a complex terrestrial ecosystem in northeast China around the time of the Middle‐Late Jurassic boundary.