Flexibility along the Neck of the Neogene Terror Bird Andalgalornis steulleti (Aves Phorusrhacidae) Tambussi, Claudia P. ; de Mendoza, Ricardo ; Degrange, Federico J. ; Picasso, Mariana B. Abstract Publication: PLoS ONE Pub Date: May 2012 DOI: 10.1371/journal.pone.0037701 Bibcode: 2012PLoSO...737701T