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The youngest record of phorusrhacid birds (Ayes, Phorusrhacidae) from the late Pleistocene of Uruguay

机译:乌拉圭晚更新世以来的磷酸幼鸟(Ayes,Phorusrhacidae)的最年轻记录

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摘要

We report the youngest record of a phorusrhacid bird based on a distal portion of a right tarsometatarsus. This fossil comes from late Pleistocene sediments of Uruguay. The age determination was based on lithological features, biostratigraphical studies and absolute dating. The evidence indicates that these groundbirds co-occurred with the typical Pleistocene South American megafaunal mammals. The so far youngest fossils of phorusrhacids stem from the Pliocene or lower Pleistocene of South and North America.
机译:我们报告了一个基于右侧酒石tar远端的磷酸鸟的最年轻记录。该化石来自乌拉圭的晚更新世沉积物。年龄的确定基于岩性特征,生物地层学研究和绝对年代。证据表明,这些陆鸟与典型的更新世南美巨型动物共生。迄今为止,最年轻的佛石酸化石来自南美和北美的上新世或下更新世。

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