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Re: Iguanodon(?) sp. and Jixiangornis
> The preserved ulna is a 25.5 cm long bone. In lateral view, its posterior
> margin is right[?]
> If the two bones described previously are clearly identifiable like
> pertaining to Iguanodontidae, [...]
> The genus Rhabdodon [ 17 ], is [the] only Iguanodontidae
Ouch! Like my Lambert book from 1983.
> known in the higher Cretaceous (Campanien and Maastrichtien) of Western
> Europe. Although it is present in many European layers [ 1, 4, 11, 15,
> its membership of Iguanodontidae only was recently suggested [ 29 ].
What's that ref?
> Ji Qiang, Ji Shu[']an, Zhang Hongbin, You Hailu,
> Zhang Jianping, Wang Lixia, Yuan Changri,
> the antorbital fenestra has not been lost.
Birds never lose it. Though in derived birds it is connected to the
orbit. -- The authors label both the aof and the naris "antorbital
> There are quadrangular lateral processes on sternum. The sternal plates
> ossified and co-fused with a midline keel.
Now a kind soul sent me a scan of the paper, and I still can't see the keel.
:-( The skull looks, superficially, quite oviraptorosaurian.
> The superficial surfaces of coracoid face anteriorly.
Instead of laterally, which means that the coracoids articulate with the
cranial instead of lateral margins of the sternum. As expected.
> There are ossified uncinate processes.
Not fused to the ribs, as usual.
> Only III-3 and the ungual [are preserved] as far as the phalanges go for
manual digit III.
The rest could be hidden underneath digit II.
> The metatarsus is proximally fused to each other and to the distal
Interestingly the 3rd metatarsal could, judging from the drawing, be
broadened proximally, like in *Hulsanpes*, *Yandangornis*, *Sapeornis* and
Pygostylia, but no other theropod I know of. If entered into my matrix,
*Jixiangornis* would differ by this character (and the keel) from
*Shenzhouraptor* and would screw that part of the tree up.
> Pedal ungual II is larger and more curved than III.
As expected. I coded *Shenzhouraptor* as uncertain for this (either III or
II largest; the alternative would be I as in avisaurids and neornithine
birds of prey).
> Pedal digit IV is [...] much longer than II.
Like *Shenzhouraptor* in my matrix.
> `-- Orthavialae
> |-- Shenzhouraptor
> `-- Euavialae
No definitions offered. At least I can't find Avialae in the Chinese text.
They put "bird/s" between quotation marks several times, though (unlike
"dinosaur/s"), and probably discuss the problem of defining "birds".