Thulborn, R. A., 1975, Dinosaur polyphyly and the classification of archosaurs and birds: Aust. Journal Zoology, v. 23, p. 249-270.
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Thulborn, R. A., 1975, Dinosaur polyphyly and the classification of archosaurs and birds: Aust. Journal Zoology, v. 23, p. 249-270.