Osteology of Khaan mckennai (Oviraptorosauria: Theropoda)

New Specimens ofAnchiornis huxleyi(Theropoda: Paraves) from the Late Jurassic of Northeastern China

“…6-8). The quadratojugal is reduced in size and L-shaped, without a horizontal posterior process, as in Archaeopteryx, troodontids, and oviraptorosaurs, but unlike the reversed T-shaped quadratojugal in dromaeosaurids Balanoff and Norell, 2012;Turner et al, 2012;Pei et al, 2014;Tsuihiji et al, 2014).…”

Osteology of a New Late Cretaceous Troodontid Specimen from Ukhaa Tolgod, Ömnögovi Aimag, Mongolia

“…Of the many fossil beds across Mongolia and northern China, the Campanian beds of the Djadokhta Formation are famous for both the abundance and exquisite preservation of various maniraptorans (Osborn et al, 1924;Jerzykiewicz and Russell, 1991;Norell et al, 1995;Norell and Makovicky, 1997;Clark et al, 2001;Norell and Clarke, 2001;Chiappe et al, 2001;Turner et al, 2007a;Dingus et al, 2008;Balanoff and Norell, 2012;Tsuihiji et al, 2014). Here we report a small-bodied troodontid specimen from the Djadokhta Formation (late Campanian) sediments of Ukhaa Tolgod, Mongolia (Dingus et al, 2008).…”

“…The ischium is about 63% the length of the pubis, comparatively longer than in Sinovenator and Mei Xu and Norell, 2004), but close to the condition of Gobivenator and Talos (Zanno et al, 2011;Tsuihiji et al, 2014). As in most maniraptorans the ischia of Almas ukhaa are not fused distally, but unlike Saurornithoides and many oviraptorosaurs Balanoff and Norell, 2012), in which the ischia are fused. The proximal end of the ischium is expanded.…”

“…The ventral process of the lacrimal is anteroposteriorly flattened as in many maniraptorans (Makovicky et al, 2003;Norell et al, 2006;Balanoff and Norell, 2012). The ventral end of this process contacts the suborbital process of the jugal on the medial side.…”

The nonavian theropod quadrate II: systematic usefulness, major trends and cladistic and phylogenetic morphometrics analyses

“…The three mandibular condyles of E. andrewsi are well developed, 1476 with a larger ectocondyle, a medium entocondyle (two thirds of the size of the ectocondyle) 1477 and a third much smaller condyle (half of the size of the entocondyle) lying posteriorly 1478 between the two (Clark et al, 1994). Khaan mckennai (Balanoff and Norell, 2012). As noticed by Maryańska andOsmólska 1504 (1997), the quadrate of oviraptorids, and to some extend oviraptorosaur theropods, is atypical 1505 because of the shape of its mandibular articulation, its contact with the pterygoid and, 1506 especially, its quadrate head.…”