Dinosaurprince
(Dinosaur Prince)
[魚類] 中級會員
 
UID 3198
精華
2
積分 377
帖子 272
閱讀權限 50
註冊 2008-2-5
來自 Hong Kong
狀態 離線
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[廣告]:
Archaeopteryx no longer first bird
https://www.nature.com/news/2011 ... LIN0teot9f2yE0T4bfs
Archaeopteryx has long been placed at the base of the bird evolutionary tree. It has traits that have helped to define what it is to be a bird, such as long and robust forelimbs. Yet in recent years, the discoveries of numerous small, feathery dinosaurs have created a conundrum for palaeontologists, raising questions about which animals are the ancestors of modern birds and which are just closely related cousins.
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