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Huaxiagnathus orientalis
Huaxiagnathus Hwang, Norell, Ji and Gao 2004
= "Huaxiasaurus" anonymous 2000
H. orientalis Hwang, Norell, Ji and Gao 2004
Middle Barremian, Early Cretaceous
Jianshangao Beds(?) of Yixian Formation, Liaoning, China
Holotype- (CAGS-IG02-301) (~1.6 m; subadult) nearly complete skeleton
missing caudal vertebrae past the 25th (radius 51 mm; metacarpal I 19 mm;
phalanx I-1 38 mm; metacarpal II 40 mm; phalanx II-1 26 mm; phalanx II-2 35
mm; metacarpal III 26 mm; femur 163 mm; metatarsal III 102 mm)
Referred- (NGMC 98-5-003; specimen of "Huaxiasaurus") (~1.8 m) partial
skeleton including skull, forelimb, hindlimb
I have the pdf, if anyone's interested. I also have a photo of the referred
specimen that's not in the paper. It's from Hwang et al.'s SVP poster, but
now that this is published, I don't see a problem with distributing it.
It's not like you can see anything in it anyway ;-)
The authors get the following topology-
222 characters, 55 taxa, strict consensus, 2592 mpt's
|--Allosaurus
`--+--Sinraptor
`--+--+--Albertosaurus
| `--Tyrannosaurus
`--+--+--Pelecanimimus
| `--+--Shenzhousaurus
| `--+--Harpymimus
| `--+--Garudimimus
| `--+--Archaeornithomimus
| |--Gallimimus
| |--Struthiomimus
| |--Ornithomimus
| `--Anserimimus
`--+--Ornitholestes
`--+--+--Huaxiagnathus
| `--+--Sinosauropteryx
| `--Compsognathus
`--+--+--Alvarezsaurus
| `--+--Patagonykus
| `--+--Shuvuuia
| `--Mononykus
|--+--+--Alxasaurus
| | `--+--Erlikosaurus
| | `--Segnosaurus
| `--+--Incisivosaurus
| `--+--Caudipteryx
| `--+--+--Avimimus
| | |--Caenagnathidae
| | `--Microvenator
| `--+--Oviraptor
| |--Rinchenia
| |--Citipati
| |--Conchoraptor
| `--Ingenia
`--+--+--Rahonavis
| `--+--Archaeopteryx
| `--Confuciusornis
`--+--+--Sinovenator
| `--+--IGM 100/44
| `--+--Byronosaurus
| |--Sinornithoides
| `--+--Troodon
| `--+--Saurornithoides mongoliensis
| `--Saurornithoides junior
`--+--Microraptor zhaoianus
|--Sinornithosaurus
`--+--Utahraptor
|--Saurornithoides
|--IGM 100/1015
|--Velociraptor
|--Deinonychus
|--Unenlagia
|--Adasaurus
|--Achillobator
`--Dromaeosaurus
I added Huaxiagnathus to my analysis, and used the supplementary info to
code several more taxa newly added to the TWG matrix with data not
previously in my analysis (Sinosauropteryx- 8 new codings; Compsognathus- 9;
Shenzhousaurus- 14; Archaeornithomimus- 16; Anserimimus- 10). Particularly
interesting is that Anserimimus is coded for many pelvic and a couple
vertebral characters, these areas being otherwise completely undescribed in
the literature.
So, 243 characters, 112 taxa, majority rule consensus, 114901 mpt's
|--+--Allosaurus
| `--+--Sinraptor
| `--Monolophosaurus
`--+--Iliosuchus
|--Stokesosaurus
`--+--Fukuiraptor
|--+--"Chilantaisaurus" maortuensis
| `--+--Eotyrannus
| `--Aviatyrannis
`--+--+--Tyrannosauridae
| `--+--Dryptosaurus
| `--Bagaraatan
`--+--Proceratosaurus
`--+--Huaxiagnathus
`--+--Calamosaurus
`--+--+--Sinosauropteryx
| `--Nqwebasaurus
`--+--Compsognathus
`--+--Scipionyx
`--+--+--Coelurus
| `--YPM 1996
`--+--Ornitholestes
`--Maniraptoriformes
|--+--+--Therizinosaurus
| | `--+--+--Patagonykus
| | | `--+--Alvarezsaurus
| | | `--Mononykinae
| | `--+--+--Garudimimus
| | | `--+--Archaeornithomimus
| | | `--Ornithomimidae
| | `--+--Pelecanimimus
| | `--+--"Grusimimus"
| | `--+--+--Harpymimus
| | | `--Shenzhousaurus
| | `--+--Deinocheirus
| | `--Anserimimus
| `--+--+--+--Beipiaosaurus
| | | `--Nothronychus
| | `--+--Alxasaurus
| | `--+--Nanshiungosaurus
| | `--+--+--Erliansaurus
| | | `--Neimongosaurus
| | `--+--Erlikosaurus
| | `--Segnosaurus
| `--+--+--Caudipteryx zoui
| | `--+--Caudipteryx sp. nov.
| `--+--+--Incisivosaurus
| | `--Avimimus
| `--+--Nomingia
| `--+--Caenagnathidae
| `--+--Oviraptoridae
| `--Microvenator
`--+--Yixianosaurus
`--+--Protarchaeopteryx
`--Deinonychosauria
|--+--Dromaeosaurus
| `--+--Utahraptor
| `--+--Pyroraptor
| `--+--+--Bambiraptor
| | `--+--+--Sinornithosaurus
| | | `--NGMC 91
| | `--+--Richardoestesia
| | `--+--Microraptor gui
| | `--+--Microraptor zhaoianus
| | `--Cryptovolans
| `--+--IGM 100/1015
| `--+--Saurornitholestes
| `--+--Adasaurus
| `--+--+--Unenlagia
| | `--Deinonychus
| `--+--Achillobator
| `--Velociraptor
`--+--+--Archaeornithoides
| `--+--IGM 100/44
| `--+--Sinovenator
| `--+--Byronosaurus
| `--+--Sinornithoides
| `--+--Saurornithoides junior
| `--+--Saurornithoides mongoliensis
| `--Troodon
`--+--Scansoriopterygidae
`--+--+--Archaeopteryx
| `--Wellnhoferia
`--+--Yandangornis
`--+--+--Jixiangornis
| `--+--Rahonavis
| `--Shenzhouraptor
`--+--+--Sapeornis
| `--Omnivoropteryx
`--+--+--Confuciusornis
| `--Changchengornis
`--+--Jibeinia
`--+--Longipteryx
`--+--Protopteryx
`--+--Concornis
`--+--Catalan nestling
`--+--Eocathayornis
`--+--+--Sinornis
| `--+--Iberomesornis
| `--Longirostravis
`--+--+--Eoalulavis
| `--Liaoningornis
`--+--+--+--Boluochia
| | `--Gobipteryx
| `--+--Noguerornis
| `--+--Enantiornis
| `--Neuquenornis
`--+--+--Apsaravis
| `--Ambiortus
`--+--+--Patagopteryx
| `--Songlingornis
`--+--Yanornis
`--+--Yixianornis
`--Ornithurae
As an interesting experiment, I decided to run my analysis with only those
taxa used by Hwang et al. Thus, the only taxon differences are they divide
up a few OTU's of mine (Tyrannosauridae, Ornithomimidae, Mononykinae,
Oviraptoridae), have Chirostenotes pergracilis instead of Caenagnathidae,
and combine the species of Caudipteryx into one OTU.
Strict consensus, 204 mpt's-
|--+--Sinraptor
| `--Allosaurus
`--+--Tyrannosauridae
`--+--Sinosauropteryx
|--Huaxiagnathus
|--Ornitholestes
`--+--Compsognathus
`--+--+--Anserimimus
| `--+--Pelecanimimus
| `--+--Harpymimus
| `--+--Shenzhousaurus
| `--+--Garudimimus
| `--+--Archaeornithomimus
| `--Ornithomimidae
`--+--+--+--Patagonykus
| | `--+--Alvarezsaurus
| | `--Mononykinae
| `--+--+--Alxasaurus
| | `--+--Erlikosaurus
| | `--Segnosaurus
| `--+--Avimimus
| `--+--+--Caudipteryx zoui
| | `--Caudipteryx sp. nov.
| `--+--Incisivosaurus
| |--Caenagnathidae
| `--+--Microvenator
| `--Oviraptoridae
`--+--Sinovenator
|--IGM 100/44
|--+--Sinornithoides
| `--+--Saurornithoides mongoliensis
| `--+--Saurornithoides junior
| `--Troodon
`--+--+--Microraptor
| `--+--Byronosaurus
| `--+--Confuciusornis
| `--+--Rahonavis
| `--Archaeopteryx
`--+--Utahraptor
`--+--Sinornithosaurus
`--+--Saurornitholestes
|--IGM 100/1015
|--Unenlagia
|--Velociraptor
|--Adasaurus
`--+--Deinonychus
`--+--Dromaeosaurus
`--Achillobator
Interesting how which taxa are included affects topology, isn't it? Another
example of why it's important to include all the taxa you can.
Mickey Mortimer