Assertion: magpie's group | /r/MadeOf | dromaeosaur
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text: Thus, these paleontologists claim that Archaeopteryx cannot, in fact, be the world’s most primitive bird, and many of the features used to describe birds could be applied to the Paraves, a more inclusive collection of theropod dinosaurs that includes birds and the deinonychosaurs (a group that contains the troodontids and the dromaeosaurs).