The fossil consists of a complete skull of an archaeocyte, an extinct group of ancestors of modern cetaceans.
“巴基鲸”化石由一个原细胞的完整头盖骨所组成,这是现代鲸类祖先中已经灭绝的一个物种。
The fossil he mentions is now a member of Archosauromorpha, a group that includes birds and crocodilians, but not lizards, snakes, or turtles.
爱珍多龙化石属于主龙形下纲,主龙形下纲包括鸟类及鳄目爬行动物,但非蜥蜴、蛇或者是龟类。
That makes the duo the oldest known fossil evidence of hitch-hiking behavior, or phoresy, in a large group of mites called the Astigmata.
这个“二人组”就成了已知最古老的化石证据,来支持无气门亚目一类螨虫的搭便车现象,或称寄载现象。
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