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2. A new flightless landbird from the Cretaceous of Patagonia;Alvarenga,1988
3. Handbook of Avian Anatomy: Namina Anatomica Avium,1993
4. The morphology of the jaw and tongue musculature of the common pigeon, Columba livia, in relation to its feeding habit;Bhattacharyya;Proc. Zool. Soc. Calcutta,1978
5. A phylogenetic analysis of postcranial skeletal characters of the ratite birds;Bledsoe;Ann. of Carnegie Mus.,1988