Two fossil birds collected from Shanwang Formation, Middle Miocene (about fifteen million years ago), of Linqu, Shandong are here described.

本文记述了山东临朐山旺组(中新世中期)出产的两件鸟类化石。

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The reality is, that next fossil find could kick Archaeopteryx right back into birds. That's the thing that's really exciting about all of this.

事实是，下一次的化石发现能把‘始祖鸟’踢回鸟类的行列里，那可真是在关于这全部的事情里最令人兴奋的呢！

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The fossil he mentions is now a member of Archosauromorpha, a group that includes birds and crocodilians, but not lizards, snakes, or turtles.

爱珍多龙化石属于主龙形下纲，主龙形下纲包括鸟类及鳄目爬行动物，但非蜥蜴、蛇或者是龟类。

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Belgian researcher Pascal Godefroit and his team compared the anatomy of the newly discovered dinosaur fossil to a variety of birds and dinosaurs to determine their relationship.

NPR: New Study Restores Famed Fossil To "Bird" Branch

But the researchers say the new fossil shows the Alvarezsauridae group split from birds much earlier on the evolutionary tree than was thought.

BBC: New dinosaur discovery solves evolutionary bird puzzle

Prof Barnosky and colleagues compared the rates of known species extinctions in mammals, birds and amphibians during the last five centuries with those estimated from the fossil record during the previous Big Five die-outs of the geological past.

BBC: Leaving our mark: What will be left of our cities?