D*****r
发帖数: 6791 | | l*****a
发帖数: 38403 | | J*****3
发帖数: 4298 | 3 http://dsc.discovery.com/dinosaurs/
Dinosaurs are a diverse group of animals of the clade Dinosauria. They first
appeared during the Triassic period, approximately 230 million years ago,
and became the dominant terrestrial vertebrates for 135 million years, from
the beginning of the Jurassic (about 200 million years ago) until the end of
the Cretaceous (65.5 million years ago), when the Cretaceous–Paleogene
extinction event led to the extinction of most dinosaur groups at the close
of the Mesozoic era. The fossil record indicates that birds evolved from
theropod dinosaurs during the Jurassic, and consequently they are considered
a type of dinosaur in modern classification systems.[1][2] Some birds
survived the extinction event that occurred 65 million years ago, and
continue the dinosaur lineage to the present day.
那些说恐龙见过人的，不知道是真脑残还是良心坏了 | l*****a
发帖数: 38403 | 4 不是脑残也不是良心坏了，是信仰把心蒙上了
first
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【在 J*****3 的大作中提到】
: http://dsc.discovery.com/dinosaurs/
: Dinosaurs are a diverse group of animals of the clade Dinosauria. They first
: appeared during the Triassic period, approximately 230 million years ago,
: and became the dominant terrestrial vertebrates for 135 million years, from
: the beginning of the Jurassic (about 200 million years ago) until the end of
: the Cretaceous (65.5 million years ago), when the Cretaceous–Paleogene
: extinction event led to the extinction of most dinosaur groups at the close
: of the Mesozoic era. The fossil record indicates that birds evolved from
: theropod dinosaurs during the Jurassic, and consequently they are considered
: a type of dinosaur in modern classification systems.[1][2] Some birds
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