英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Pterosaur - Wikipedia
    Pterosaur skeletons often show considerable fusion In the skull, the sutures between elements disappeared In some later pterosaurs, the backbone over the shoulders fused into a structure known as a notarium, which served to stiffen the torso during flight, and provide a stable support for the shoulder blade
  • Pterosaur | Flying Reptile, Fossil Order | Britannica
    Pterosaur, any of the flying reptiles that flourished during all periods (Triassic, Jurassic, and Cretaceous) of the Mesozoic Era (252 2 million to 66 million years ago) Although pterosaurs are not dinosaurs, both are archosaurs, or “ruling reptiles,” a group to which birds and crocodiles also
  • Ancient Pterosaur Wing Reveals Biological Secrets Hidden For 100 . . .
    More than 100 million years ago, a flying reptile called a pterosaur flew over the oceans hunting squid and fish
  • Pterosaurs: The truth about these ‘flying dinosaurs’
    Discover pterosaurs through the collections we care for – from how giant reptiles could fly to what makes pterosaurs different to dinosaurs and and why they went extinct but birds survived
  • Pterosaur Facts – Amazing Flying Reptiles That Lived With Dinosaurs
    Pterosaur facts, pictures and in-depth information Flying above the heads of the dinosaurs were another group of distinctive Mesozoic Era animals – the pterosaurs These amazing prehistoric winged reptiles were the first vertebrates to fly On this page you’ll become a pterosaur expert as you find out about pterosaur evolution, the different types of pterosaur, and much more…
  • Pterosaur - New World Encyclopedia
    Pterosaur's hip sockets were oriented facing slightly upwards, and the head of the femur (thigh bone) was only moderately inward facing, suggesting that pterosaurs had a semi-erect stance It would have been possible to lift the thigh into a horizontal position during flight Pterosaur bones were hollow and air filled, like the bones of birds
  • Perfectly preserved pterosaur wing rewrites the fossil rulebook
    The fossilized wing phalanx of a prehistoric pterosaur, found in northeastern Brazil, was remarkably preserved in three dimensions, even retaining chemical traces hinting at its diet, thanks to
  • Pterosaurs Explained: The Flying Reptiles That Ruled Prehistoric Skies
    Learn how pterosaurs evolved into one of the most diverse groups of flying vertebrates, with a stunning range of forms, sizes, and ecological roles
  • A 113-Million-Year-Old Pterosaur Fossil Holds Chemical Clues to a Fish . . .
    A 113-Million-Year-Old Pterosaur Fossil Holds Chemical Clues to a Fish-and-Squid Diet Learn how bacteria, oxygen, and layers of minerals locked fragile molecules inside a Cretaceous pterosaur fossil from Brazil instead of destroying them
  • Pteros: The online museum of pterosaurs
    From Aerotitan to Zhenyuanopterus, Pteros illustrates all genera of the prehistoric flying reptiles known as pterosaurs





中文字典-英文字典  2005-2009