Nesting Rhea with Casuarius agrees with prior analyses.
Figure 1. Rhea skull shares more traits with Casuarius, the cassowary. Note the confluent naris, antorbital fenestra, orbit and temporal fenestrae.
Rhea americana (extant) is the largest rhea of South America. The juvenile has a large thumb claw and unfused fingers that fuse with maturity. Essentially this is a giant tinamou.
Figure 2. The cassowary skull shows the mesethmoid (yellow green) is greatly expanded from its original flat appearance in Rhea (Fig. 1).
Casuarius casuarius (Brisson 1760; up to 2m tall) The extant cassowary is one of the few birds with a bony crest or casque on its head. Derived from a tinamou like Rhynchotus, this flightless omnivore feeds mainly on fruit, shoots and small seeds. The crest shape variws with the individual. Females are larger and more brightly colored. The manus is a fused (undifferentiated) vestige.
Figure 2. Rhea skeleton with enlarged manus and pes. The inset shows an unfused manus, fused in the adult.
References
Linnaeus C 1758. Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata.
The Pterosaur Heresies 
I just want to say – for the benefit of naive readers who don’t already know this – that the outlines and bone identifications you’re coming up with here are total fantasy (referring in particular to the cassowary in lateral view). And, no, these birds are not ‘giant tinamous’.
Thanks, Darren. I’ve been wrong before and made corrections. Be careful. You’ve been wrong before, too. Where are the competing illustrations and analyses? You have a reputation as a data denier and a blackwasher. It would be professional and appropriate to have some data to back up your claims, and to point out at least a few details in every instance. On the other hand, others have confirmed my work in academic publications.
PS For those unfamiliar with Dr. Naish’s methods, see: https://pterosaurheresies.wordpress.com/2016/01/27/lets-open-up-an-old-can-of-worms/