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首页> 外文期刊>Acta Palaeontologica Polonica >New bird remains from the Middle Eocene of Guangdong, China
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New bird remains from the Middle Eocene of Guangdong, China

机译:来自中国广东中新世的新鸟遗骸

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摘要

Wedescribe a new avian taxon (Sanshuiornis zhangi gen. et sp. nov.) from Middle Eocene black oil shales in the Huayong Formation of Guangdong Province, south China. The specimen consists of a distal tibiotarsus and a complete foot with tarsometatarsus and pedal digits in articulation. A preliminary phylogenetic analysis does not resolve the affinities of the fossil, but the bones show resemblances to some "ciconiiform" birds. The peculiar hypotarsus morphology, which is block-like and exhibits four cristae, resembles that of the early Eocene Rhynchaeites, which is a stem group representative of the Threskiornithidae. The new Chinese fossil has, however, proportionally longer legs than Rhynchaeites and its phylogenetic affinities probably cannot be resolved without further material.
机译:我们从中国南部广东省华永组的始新世中部黑色油页岩中描述了一种新的鸟类分类群(Sanshuiornis zhangi gen。et。nov。)。标本由远端胫骨tar和完整的脚组成,具骨和脚趾关节。初步的系统发育分析并未解析化石的亲和力,但骨头显示出与某些“ ciconiiform”鸟类相似。奇特的下丘肌形态呈块状,并表现出四个cr,类似于早期始新世Rhynchaeites的形态,后者是Threskiornithidae的一个茎群。但是,这种新的中国化石的腿长于Rhynchaeite,并且如果没有进一步的材料,它的系统亲和力可能无法解决。

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