搜索结果: 1-9 共查到“考古学 evolution”相关记录9条 . 查询时间(0.125 秒)
南京师范大学社会发展学院考古学原理英文课件 Lithic tool evolution
南京师范大学社会发展学院 考古学原理 英文 课件 Lithic tool evolution
2015/7/10
南京师范大学社会发展学院考古学原理英文课件 Lithic tool evolution。
南京师范大学社会发展学院考古学原理英文课件 Human Origins and evolution
南京师范大学社会发展学院 考古学原理 英文 课件 Human Origins and evolution
2015/7/10
南京师范大学社会发展学院考古学原理英文课件 Human Origins and evolution。
Small Theropod Teeth from the Late Cretaceous of the San Juan Basin, Northwestern New Mexico and Their Implications for Understanding Latest Cretaceous Dinosaur Evolution
Late Cretaceous San Juan Basin
2014/5/21
Studying the evolution and biogeographic distribution of dinosaurs during the latest Cretaceous is critical for better
understanding the end-Cretaceous extinction event that killed off all non-avian ...
Discovery of new Tiktaalik roseae fossils reveals key link in evolution of hind limbs（图）
Tiktaalik roseae fossils evolution
2014/3/17
The discovery of well-preserved pelves and a partial pelvic fin from Tiktaalik roseae, a 375 million-year-old transitional species between fish and the first legged animals, reveals that the evolution...
A Short-Armed Troodontid Dinosaur from the Upper Cretaceous of Inner Mongolia and Its Implications for Troodontid Evolution
A Short-Armed Troodontid Dinosaur Troodontid Evolution
2014/3/26
roodontids are a group of small theropods characterized by
long legs and enlarged braincases [1]. Although phylogenetic
analyses have varied to some extent in their placement of the
Troodontidae, t...
A monodactyl nonavian dinosaur and the complex evolution of the alvarezsauroid hand
A monodactyl nonavian dinosau alvarezsauroid hand
2014/3/26
Digital reduction is a striking evolutionary phenomenon that is
clearly exempli fi ed in theropod dinosaurs by the functionally didac-tyl manus of tyrannosaurids, the flight-adapted manus of birds
(...
A new Lower Cretaceous bird from China and tooth reduction in early avian evolution
Lower Cretaceous bird evolution beak China
2014/3/26
A new avian genus and species,Zhongjianornis yangi gen. et sp. nov., is reported from the Lower Cretaceous
lacustrine deposits of the Jiufotang Formation in Liaoning, northeast China. The new taxon i...
A new feather type in a nonavian theropod and the early evolution of feathers
Early Cretaceous a nonavian theropod
2014/3/26
All described feathers in nonavian theropods are composite struc-tures formed by multiple filaments. They closely resemble rela-tively advanced stages predicted by developmental models of the
origin ...
An onychodont fish (Osteichthyes, Sarcopterygii) from the Early Devonian of China, and the evolution of the Onychodontiformes
onychodonts evolutio Early Devonian phylogenetic analysis
2014/3/26
Although the superbly preserved specimens of Onychodus jandemarraihave greatly advanced our
understanding of the Onychodontiformes, a primitive sarcopterygian group with large parasymphysial
tooth w...