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What is 1 + 3?
These are 3 toed, sharp clawed, teeter-totter balanced, carnivores. Carnosaurs, Maniraptors, Ornithominids, Ceratosaurs, birds
Stegosaurus, Ankylosaurs., armored dinosaurs.
Hadrosurs(duck billed), Iguanodons. "bird foot"
Ceratopsians (triceratops) Pachycephalosaurs.
herbivorous or carnivorous dinosaur having a three-pronged pelvis like that of a crocodile
one of two groups dinosaurs are divided into. It means 'bird-hipped.
Born in water breath from gills
scaly skin, breathe through their lungs.
Link between reptiles and Mammals.
gave rise to: Dinosaurs, Pterosaurs, Crocodillians.
diapsid. From amniotes and Seymoria