Osteology of a North American goniopholidid (Eutretauranosuchus delfsi) and palate evolution in Neosuchia Author Pritchard, Adam C. Author Turner, Alan H. Author Allen, Eric R. Author Norell, Mark A. text American Museum Novitates 2013 2013-10-23 2013 3783 1 56 http://www.bioone.org/doi/abs/10.1206/3783.2 journal article 4561 10.1206/3783.2 756aeb2d-d451-4503-a7e0-d2e666a24981 0003-0082 5364787 Eutretauranosuchus delfsi Mook, 1967 HOLOTYPE : CMNH 8028 , nearly complete skull and complete mandibles ( figs. 2 , 3 ). REFERRED SPECIMENS : BYU 17628, complete skull and articulated mandibles. NEWLY REFERRED SPECIMEN: AMNH FARB 570, complete skull ( figs. 5–15 ); partial right hemimandible ( fig. 16 ); partial cervical series with associated osteoderms ( fig. 1 ), three isolated osteoderms, distal portion of a left femur ( fig. 17 ). EMENDED DIAGNOSIS: (1) Elongate, platyrostral skull; (2) prominent depression on posterolateral surface of alveolar process of maxilla; (3) subtle emargination of maxillary tooth row, with only a single lateral undulation; (4) broadening of nasals anterior to prefrontals; (5) nasals do not contact external nares; (6) broad, flat interfenestral bar with raised medial rims along supratemporal fenestrae (from Mook, 1967 , and Smith et al., 2010 : shared with Amphicotylus lucasii [AMNH FARB 5782]); (7) anteroposteriorly elongate palatal opening due to partial contact of palatal processes of maxillae and noncontact of palatal processes of palatines, exposing entire nasopharyngeal canal in ventral view (shared with Calsoyasuchus valliceps [TMM 43631-1]); (8) nasopharyngeal septum formed from diverging vomeral processes anteriorly and midline pterygoid process posteriorly (present in Amphicotylus lucasii [AMNH FARB 5782]); and (9) vomeral septal complex forms X shape in cross section (shared with Amphicotylus lucassii [AMNH FARB 5782]). LOCALITY: Bone Cabin Quarry, Morrison Formation (Brushy Basin Member), Wyoming , United States of America (fig. 4). Upper Jurassic (Kimmeridgian) ( Foster, 2009 ).