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
    Pterosaurs are the earliest vertebrates known to have evolved powered flight Their wings were formed by a membrane of skin, muscle, and other tissues stretching from the ankles to a dramatically lengthened fourth finger [9] Traditionally, pterosaurs were divided into two major types
  • 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)
  • Pterosaurs: The truth about these ‘flying dinosaurs’
    During the Mesozoic Era, while dinosaurs ruled the land and giant marine reptiles dominated the oceans, the skies were filled with another kind of reptile – the pterosaurs Pterosaurs – or pterodactyls as you may also have heard people refer to them – are one of Hollywood’s great scene-setters
  • Pterosaur Facts – Amazing Flying Reptiles That Lived With Dinosaurs
    What Is A Pterosaur? A pterosaur is an extinct, winged, flying reptile that lived alongside the dinosaurs during the Mesozoic Era Pterosaurs appeared around 220 MYA (million years ago), in the Late Triassic, and went extinct during the Cretaceous-Paleogene Extinction Event, which occurred 66 MYA
  • Pteros: The online museum of pterosaurs
    Pterosaurs, like most other reptiles, started life as an egg, and fossil pterosaur eggs are very rare Paleontologists have discovered several eggs, embryos, baby pterosaurs and nesting grounds Before birds and bats, pterosaurs were the first flying vertebrates in Earth's history
  • Introduction to the Pterosauria - University of California Museum of . . .
    Ranging from the size of a sparrow to the size of an airplane, the pterosaurs (Greek for "wing lizards") ruled the skies in the Jurassic and Cretaceous, and included the largest vertebrate ever known to fly: the late Cretaceous Quetzalcoatlus
  • Pterosaur - New World Encyclopedia
    Pterosaurs were the earliest vertebrates known to be capable of flight Their wings were formed by a sophisticated membrane of skin stretching from the thorax to a dramatically lengthened fourth finger
  • Pterosaurs 101 - Education
    Learn about the anatomical features that made their flight possible, how large some of these creatures grew, and which species was named after a vampire legend
  • How Did Pterosaurs Differ From Dinosaurs?
    Understanding how pterosaurs differed from dinosaurs isn’t just an exercise in classification It’s a doorway into one of evolution’s most daring experiments: flight It’s a story of bones made hollow for lift, of membranes evolved for soaring, and of creatures that once danced in the thermals above a Triassic landscape, never to return
  • What Is a Pterosaur? - AMNH
    Neither birds nor bats, pterosaurs were reptiles, close cousins of dinosaurs who evolved on a separate branch of the reptile family tree They were also the first animals after insects to evolve powered flight—not just leaping or gliding, but flapping their wings to generate lift and travel through the air





中文字典-英文字典  2005-2009