我们所熟悉的恐龙,不是高大威武,就是奇形怪状。它们种类很多,形态各异。但是,早期的恐龙却不怎么像样。它们外形一般,个头也不大,很难把它们与后来出现的那些五花八门的后代对上号,可见那时恐龙的分化还不十分明显。早期的恐龙是指三叠纪的恐龙。由于时代久远,而且恐龙初露头角,数量种类都十分有限,所以留下的遗骨化石也不多。 The dinosaurs we are familiar with are not tall and mighty, they are bizarre. They are many different forms. However, the early dinosaurs did not look decent. Their general appearance, not big, it is difficult to put them with the subsequent emergence of a variety of offspring number, we can see that at that time the differentiation of dinosaurs is not yet very clear. The early dinosaurs were Triassic dinosaurs. As time goes by, and dinosaurs are beginning to emerge, the number of species are very limited, so there are not many fossils left.