Reptilia
... 四足超纲Tetrapoda脊椎动物亚门Vertebrata 爬行动物纲Reptilia 双孔亚纲Diapsida ...
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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。
The fossil he mentions is now a member of Archosauromorpha, a group that includes birds and crocodilians, but not lizards, snakes, or turtles.
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