Furileusauria

Classification

Distinguishing traits

Furileusauria is distinguished by several traits exclusive to the members of this clade. These are:

• the presence of a tip in the middle area of the posterior surface of the ventral process of the postorbital
• the presence of a knob followed by a deep notch in the postorbital-squamosal contact
• the absence of fenestra between the frontal, postorbital and lacrimal
• an anterior projection of the distal end of the cervical epiphophyses
• the posterior margin of the postzygapophyses at level with the intervertebral articulation in dorsal vertebrae
• a crescent-shaped morphology of the distal tip of the transverse processes in anterior and middle caudal vertebrae
• the transverse processes of anterior caudal vertebrae distally expanded and only anteriorly projected
• a convex external margin of the transverse processes in anterior caudal vertebrae
• cnemial crest of the tibia with a downturned process

Phylogeny

In the description of the abelisaurid Llukalkan, the authors performed a phylogenetic analysis to test the affinities of the new taxon. The simplified strict consensus tree of the analysis is shown below.