Morphological Variations within the Ontogeny of Deinonychus antirrhopus (Theropoda, Dromaeosauridae) Parsons, William L. ; Parsons, Kristen M. Abstract Publication: PLoS ONE Pub Date: April 2015 DOI: 10.1371/journal.pone.0121476 Bibcode: 2015PLoSO..1021476P