New Dromaeosaurids (Dinosauria: Theropoda) from the Lower Cretaceous of Utah, and the Evolution of the Dromaeosaurid Tail Senter, Phil ; Kirkland, James I. ; DeBlieux, Donald D. ; Madsen, Scott ; Toth, Natalie Abstract Publication: PLoS ONE Pub Date: May 2012 DOI: 10.1371/journal.pone.0036790 Bibcode: 2012PLoSO...736790S