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6 November 2025

  • curprev 18:0518:05, 6 November 2025 WernerCleburne8 talk contribs 8,357 bytes +8,357 Created page with "<br><br><br>化石记录表明,鸟类是现代的有羽毛恐龙,由晚侏罗世的小型兽脚类进化而来,因此鸟类是在大约6600万年前白垩纪-古近纪灭绝事件中幸存下来的唯一恐龙谱系。 恐龙可分为鸟翼类恐龙(Avian dinosaurs,即鸟类)和非鸟翼类恐龙[https://sportsrants.com/?s=%EF%BC%88Non-avian (Non-avian] dinosaurs),本条目中的"恐龙"一般指后者。 如果说底层是凝固地球演化的史诗,..."