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Re: Pedopenna daohugouensis n gen sp
Unfortunately, nothing but that foot, the distal part of the (partially
fused) tibiotarsus and the distal part of a possible fibula is preserved.
"A small eumaniraptoran apomorphically has a very slender pedal phalanx I-1
(length/mid-shaft-diameter ratio about 7.2). It differs from the
dromaeosaurids and troodontids in having a less specialized pedal digit II
and pedal phalanx II-2 longer than II-1, from the dromaeosaurids in having a
short metatarsal V and lacking a postomedial flange on metatarsal IV, from
the Aves including *Epidendrosaurus* in having a hallux which is not
reversed and a pedal phalangeal portion shorter than the metatarsus."
That latter feature should probably become a character in my matrix.
The toe proportions are, off the top of my head, similar to *Archaeopteryx*.
The foot feathers are narrower and fewer than in *Microraptor*, and
seemingly symmetric. Their shafts are IMHO not thicker than normal. The
entire "wing" has a round shape.
Consensus tree of 1616 MPTs. 259 characters! (AMNH dataset.) Species-level
OTUs were used throughout; they can be found in the supplementary
The tree is called a majority consensus; however, all but 3 of the nodes
shown below are marked "100" in the supp. inf., which most probably means
that they appear in 100 % of the trees:
| |--*Archaeopteryx lithographica*
| |--*Epidendrosaurus ningchengensis*
| `--93--*Rahonavis ostromi*
| `--53--*Confuciusornis sanctus*
| `--*Jeholornis [sic] prima [sic]*
`--+--+--*Sinovenator changii [sic]*
| `--other troodontids
`--+--*Sinornithosaurus millenni [sic]*
The supp. inf. also contains a list of unambiguous synapomorphies of the
larger named clades. Strangely enough, "Avialae" is mentioned, which doesn't
turn up in the text! "Avialae" has two (hallux distally located, phalanx I-1
extending to level of distal end of metatarsal III; ascending process of
astragalus tall and relatively narrow, covering lateral half of anterior
surface of tibia including calcaneum), "Aves" has just one (mt I attaches to
posterior surface of distal quarter of mt II).