三叶虫

The thorax and pleon bear a number of lateral appendages, including the gills, and the tail ends with a telson.

另一个古老特征是甲壳亚门动物分叉，样在化石中三叶虫就已经有了。

The new framework, comprising a pre-trilobite series and three trilobite-dominated series, reflects the major evolutional stages of the life on Earth during Cambrian Period.

新划分方案包括1个“前三叶虫”和3个“三叶虫优势”，反映了寒武纪生命发展主要阶段。

On the rank that reachs mummy from cranium of trilobite, dinosaurian egg, pithecanthrope, crockery, remains, get through gives birth to the channel that is born not to cease.

从三叶虫、恐龙蛋、猿人头盖骨、瓦器、废墟及木乃伊列,通生生不息隧道。