11. The skull preserves an antorbital fenestra, or opening in front of the eyes. 12. The specimens can be compared only in the area surrounding the right antorbital fenestra. 13. Compared to " Ornithomimus ", the antorbital fenestra is proportionally shorter. 14. One of these is a large triangular antorbital fenestra in the side of the snout. 15. An interantorbital channel, connecting the antorbital fenestrae at each skull side, is lacking. 16. The antorbital fenestra houses a paranasal sinus that is confluent with the adjacent nasal capsule. 17. The teeth are located entirely anterior to the antorbital fenestra and the snout is especially broad. 18. Systematically, the presence of the antorbital fenestra is considered a synapomorphy that unites tetanuran theropods as a clade. 19. The depression in which the antorbital fenestra is located, has a front end in the form of a lobe. 20. Neosauropods display a large opening in the skull located ventral to the antorbital fenestra, known as the preantorbital fenestra.
