Cryolophosaurus, the primitive antarctic theropod with a cool hair cut.
Notes: I had originally planned to go with a combination of Dilophosaurus and "D." sinensis parts to reconstruct Cryolophosaurus as a coelophysoid-grade theropod, but the massive Carrano et al study came out on the second day I spent on this critter, so it's been rejiggered a bit to reflect it's possible status as a basal tetanuran (along with "D". sinensis).
Update: Altered the anterior caudals and the cervical ribs based on Michael's observations. Also updated the soft tissue silhouette to bring make it current.
Well, I wouldn't get too attached to any particular phylogenetic hypotheses regarding the base of theropoda just yet, but the most recent studies seem to indicate that at the least it should be closer to more derived theropods than is Dilophosaurus. I hope to get time to restore Dilophosaurus at some point (and Coelophysis as well) to get a better feel for them.