国内英语资讯:Over 200 fossilized eggs found in China reveal how pterosaurs breed
<p><span word="WASHINGTON">WASHINGTON</span>, <span word="Nov">Nov</span>. 30-- <span word="Over">Over</span> 200 <span word="three">three</span>-<span word="dimensionally">dimensionally</span> <span word="preserved">preserved</span> <span word="eggs">eggs</span> <span word="of">of</span> <span word="pterosaurs">pterosaurs</span> <span word="have">have</span> <span word="been">been</span> <span word="unearthed">unearthed</span> <span word="in">in</span> <span word="China">China</span>, <span word="providing">providing</span> <span word="new">new</span> <span word="insight">insight</span> <span word="into">into</span> <span word="the">the</span> <span word="life">life</span> <span word="history">history</span> <span word="of">of</span> <span word="the">the</span> <span word="rulers">rulers</span> <span word="of">of</span> <span word="the">the</span> <span word="skies">skies</span> <span word="in">in</span> <span word="the">the</span> <span word="age">age</span> <span word="of">of</span> <span word="dinosaurs">dinosaurs</span>, <span word="scientists">scientists</span> <span word="said">said</span> <span word="Thursday">Thursday</span>.</p><p>"<span word="I">I</span> <span word="am">am</span> <span word="extremely">extremely</span> <span word="excited">excited</span> <span word="and">and</span> <span word="collected">collected</span> <span word="them">them</span> <span word="very">very</span> <span word="carefully">carefully</span>," <span word="said">said</span> <span word="study">study</span> <span word="researcher">researcher</span> <span word="Xiaolin">Xiaolin</span> <span word="Wang">Wang</span>, <span word="a">a</span> <span word="paleontologist">paleontologist</span> <span word="at">at</span> <span word="the">the</span> <span word="Institute">Institute</span> <span word="of">of</span> <span word="Vertebrate">Vertebrate</span> <span word="Paleontology">Paleontology</span> <span word="and">and</span> <span word="Paleoanthropology">Paleoanthropology</span> <span word="of">of</span> <span word="the">the</span> <span word="Chinese">Chinese</span> <span word="Academy">Academy</span> <span word="of">of</span> <span word="Sciences">Sciences</span> <span word="in">in</span> <span word="Beijing">Beijing</span>, <span word="recalling">recalling</span> <span word="the">the</span> <span word="discovery">discovery</span> <span word="from">from</span> <span word="the">the</span> <span word="Turpan">Turpan</span>-<span word="Hami">Hami</span> <span word="Basin">Basin</span> <span word="located">located</span> <span word="in">in</span> <span word="Xinjiang">Xinjiang</span> <span word="in">in</span> <span word="northwestern">northwestern</span> <span word="China">China</span>.</p><p><span word="The">The</span> <span word="findings">findings</span> <span word="on">on</span> <span word="the">the</span> <span word="pterosaur">pterosaur</span> <span word="species">species</span>, <span word="known">known</span> <span word="as">as</span> <span word="Hamipterus">Hamipterus</span> <span word="tianshanensis">tianshanensis</span>, <span word="were">were</span> <span word="published">published</span> <span word="in">in</span> <span word="the">the</span> <span word="U">U</span>.<span word="S">S</span>. <span word="journal">journal</span> <span word="Science">Science</span>.</p><p><span word="Pterosaurs">Pterosaurs</span> <span word="were">were</span> <span word="the">the</span> <span word="first">first</span> <span word="vertebrates">vertebrates</span> <span word="to">to</span> <span word="evolve">evolve</span> <span word="powered">powered</span> <span word="flight">flight</span> <span word="and">and</span> <span word="they">they</span> <span word="dominated">dominated</span> <span word="the">the</span> <span word="skies">skies</span> <span word="during">during</span> <span word="the">the</span> <span word="age">age</span> <span word="of">of</span> <span word="dinosaurs">dinosaurs</span>, <span word="which">which</span> <span word="spans">spans</span> <span word="from">from</span> <span word="about">about</span> 252 <span word="million">million</span> <span word="years">years</span> <span word="ago">ago</span> <span word="to">to</span> <span word="about">about</span> 66 <span word="million">million</span> <span word="years">years</span> <span word="ago">ago</span>.</p><p><span word="To">To</span> <span word="date">date</span>, <span word="only">only</span> 11 <span word="pterosaur">pterosaur</span> <span word="eggs">eggs</span> <span word="have">have</span> <span word="been">been</span> <span word="found">found</span>, <span word="three">three</span> <span word="of">of</span> <span word="which">which</span> <span word="have">have</span> <span word="fossilized">fossilized</span> <span word="embryos">embryos</span> <span word="inside">inside</span>.</p><p><span word="Five">Five</span> <span word="of">of</span> <span word="the">the</span> <span word="eggs">eggs</span> <span word="were">were</span> <span word="also">also</span> <span word="found">found</span> <span word="in">in</span> <span word="the">the</span> <span word="Turpan">Turpan</span>-<span word="Hami">Hami</span> <span word="Basin">Basin</span>, <span word="where">where</span> <span word="a">a</span> <span word="huge">huge</span> <span word="lake">lake</span> <span word="once">once</span> <span word="existed">existed</span> <span word="in">in</span> <span word="the">the</span> <span word="Cretaceous">Cretaceous</span> <span word="period">period</span>.</p><p><span word="Now">Now</span>, <span word="this">this</span> <span word="sparse">sparse</span> <span word="sample">sample</span> <span word="size">size</span> <span word="was">was</span> <span word="dramatically">dramatically</span> <span word="increased">increased</span> <span word="upon">upon</span> <span word="the">the</span> <span word="discovery">discovery</span> <span word="of">of</span> <span word="the">the</span> 215 <span word="Hamipterus">Hamipterus</span> <span word="eggs">eggs</span> <span word="that">that</span> <span word="are">are</span> <span word="estimated">estimated</span> <span word="to">to</span> <span word="be">be</span> 120 <span word="million">million</span> <span word="years">years</span> <span word="old">old</span> <span word="based">based</span> <span word="on">on</span> <span word="the">the</span> <span word="geological">geological</span> <span word="information">information</span>.</p><p><span word="Wang">Wang</span> <span word="said">said</span> <span word="up">up</span> <span word="to">to</span> 300 <span word="eggs">eggs</span> <span word="may">may</span> <span word="be">be</span> <span word="present">present</span> <span word="at">at</span> <span word="the">the</span> <span word="excavation">excavation</span> <span word="site">site</span> <span word="near">near</span> <span word="the">the</span> <span word="city">city</span> <span word="of">of</span> <span word="Hami">Hami</span> <span word="because">because</span> <span word="more">more</span> <span word="appear">appear</span> <span word="to">to</span> <span word="be">be</span> <span word="buried">buried</span> <span word="under">under</span> <span word="the">the</span> <span word="exposed">exposed</span> <span word="ones">ones</span>.</p>
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