Geography and Locality: ??
Refered specimens: (if applicable) ??
What follows is something similar to an osteology, and here I will try to demonstrate the closest probable affinity of this (or these) animal(s) to other groups of the Dinosauria.
Built of light struts and plates, the skull's cranial roof is dorsally bowed, reflecting the expanded braincase and endocranium. The cap is broad, relegating the supratemporal fenestrae (upper temporal openings) to the sides of the skull, and are relatively narrow themselves with robust intertemporal bars formed by the postorbital and squamosal bones. The holotype skull cap, specimen IVPP 3701/1 (interfused parietals and frontals, posterior nasals, partial squamosals and postorbitals where they connect to the parietals and frontals, supraoccipital, and laterosphenoids(?)).
Specimen IVPP 3907/3 is refered to the holotype on the basis of a very similar skullcap construction. I do not disagree with the allocation. The skull is small with a short snout and is relatively deep; overall, it resembles the skulls of oviraptorosaurs in having no teeth and a dorsal placement of the external nares. The pterygoid bones are deeper than wide, as in oviraptorosaurs, but are placed close to the midline, a unique development. The postorbital is only partly preserved, broken below half its length, and consequently led Kurzanov (1985, 1987) and Norman (1990) to restore the skull as lacking a complete postorbital bar as in theropods, resembling more that of more modern birds (Ornithothoracines).
In all, the skull is unique in possessing supraorbital rims formed from the frontals and postorbitals that project up and out to the level of the dome-like skull roof, making impressively-shaped "eyebrows" that were highly vascularized as in birds and maniraptoriform theropods and probably covered in something similar to keratin to make horny brows. The antorbital fossa, possessing a secondary antorbital fenestra (a maxillary fenestra) that reached up to the front of the snout, and showed the external nares were pushed all the way back to the top of the snout, which is the most extreme placement of the nares in any theropod or even bird.
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