Not the apatosaurus formerly known as the brontosaurus .

这可不是以前被认做是雷龙的迷惑龙。

But even at a mere 18 tonnes , apatosaurus would still have been an awesome sight .

即使雷龙只有18吨，它仍将是蔚为壮观的。

Description-what the apatosaurus looked like ?

迷惑龙长的什么样？

Taxonomists renamed it apatosaurus in 1903 , when it was discovered that two different names referred to the same dinosaur .

1903年，当发现有两个不同的名字指代这一恐龙时，分类学家们将它重新命名。

Gary packard of colorado state university and his colleagues do not deny that creatures like apatosaurus , brachiosaurus and diplodocus were big-and bigger than any terrestrial mammal .

科罗拉多州立大学加利帕卡德和他的同事并不否认雷龙、腕龙和梁龙是巨型动物，并且认同它们大于任何陆地哺乳动物。