The creatures that we normally think of as dinosaurs lived from late in the Triassic period (about 225 million years ago) until the end of the Mesozoic era (about 65 million years ago).

 
  • 这类被称作恐龙的生物生活在从三叠纪(大约2.;25亿年前)到中生代的末期(大约6500万年前)。
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