“河南大恐龙”就是巨型汝阳龙,属于蜥脚类恐龙。蜥脚类恐龙是四足行走的植食性动物,它们体型庞大,具有桶状的身体、长长的脖子和尾巴,以及粗壮的四肢,头与身躯比起来显得很小。蜥脚类是地球上生存过的最大的陆生脊椎动物,其中很多体长超过30米、体重近百吨。除了蜥脚类,地球上还没有体长超过20米的陆生动物呢!从地理分布、生存时间、生物量、遗传多样性以及形态的复杂性来看,蜥脚类是一群非常成功的恐龙。许多人们 “Henan big dinosaur ” is a giant Ruyang dragon, sauropod dinosaur. Sauropod dinosaurs are four-footed, herbivorous animals that are large in size, have a barrel-shaped body, long necks and tails, and stout limbs that look smaller than the body. Sauropods are the largest terrestrial vertebrates that survive on earth, many of them more than 30 meters in length and weighing nearly 100 tons. With the exception of the sauropods, there are no terrestrial animals more than 20 meters long on the earth! Sauropods are a group of very successful dinosaurs, based on their geographical distribution, survival time, biomass, genetic diversity and complexity of their morphology . Many people