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Anonymous
Maybe a taxonomic point of view would help:
* Birds are theropods * Theropods are dinosaurs * Dinosaurs are archosaurs * Archosaurs are diapsids * Diapsids are sauropsids
ergo: Sauropsida>Diapsida>Archosauria>Dinosauria>Theropoda>birds
Within Sauropsida we have: turtles, tuatara, lizards, snakes, crocodiles and dinosaurs (incl. birds)
Within Diapsida we have: tuatara, lizards, snakes, crocodiles and dinosaurs (incl. birds)
Within Archosauria we have: crocodiles and dinosaurs (incl. birds)
Within Dinosauria we have dinosaurs (incl. birds)
Questions?
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