[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Tyrannosauroids and dromaeosaurs
Well, I just ran my analysis to see what it says about the recent questions
about tyrannosauroid and dromaeosaur phylogeny.
I coded Iliosuchus (9/243 characters codable) and Aviatyrannis (24/243).
Technically, I can code Aviatyrannis tentatively for a couple other
characters, but I'll need to look at Zinke (1998) at home to do that. Of
course, I have no pubic, ischial or hindlimb characters yet. And there are
six other ilial characters I have written down but haven't added yet. But I
have eight more characters than last time (these damn ilial characters use
too many angles and ratios, so take foever to code), and a few added taxa
(Adasaurus, Calamosaurus, Fukuiraptor). I also changed several cranial and
cervical characters to be MUCH less subjective.
90% majority rule consensus tree
|--+--Monolophosaurus
| `--Sinraptor
`--+--Dryptosaurus
`--+--Allosaurus
`--+--"Chilantaisaurus" maortuensis
`--+--+--Iliosuchus
| |--Fukuiraptor
| |--Stokesosaurus
| `--+--Bagaraatan
| |--Aviatyrannis
| `--Tyrannosauridae
`--+--Calamosaurus
`--+--Eotyrannus
`--+--Richardoestesia
`--+--+--Ornitholestes
| `--Nqwebasaurus
`--+--Sinosauropteryx
`--+--Compsognathus
`--+--+--Proceratosaurus
| `--+--Coelurus
| `--+--Scipionyx
| `--YPM 1996
`--+--+--+--Mononykinae
| | `--+--Patagonykus
| | `--Alvarezsaurus
| `--+--+--Garudimimus
| | `--+--Archaeornithomimus
| | `--Ornithomimidae
| `--+--Pelecanimimus
| |--"Grusimimus"
| `--+--Harpymimus
| |--Shenzhousaurus
| `--Deinocheirus
`--+--+--Alxasaurus
| `--+--+--Erliansaurus
| | `--+--Nothronychus
| | `--+--Neimongosaurus
| | `--Beipiaosaurus
| `--+--Erlikosaurus
| `--+--Therizinosaurus
| `--+--Nanshiungosaurus
| `--Segnosaurus
`--+--Yixianosaurus
`--+--+--+--Caudipteryx zoui
| | `--Caudipteryx sp. nov.
| `--+--+--Incisivosaurus
| | `--Avimimus
| `--+--Nomingia
| `--+--Caenagnathidae
| `--+--Microvenator
| `--Oviraptoridae
`--+--Protarchaeopteryx
`--+--+--Archaeornithoides
| `--+--Byronosaurus
| `--+--Pyroraptor
|
`--+--Sinovenator
| `--+--IGM
100/44
|
`--+--Sinornithoides
|
`--+--Troodon
|
`--+--Saurornithoides mongoliensis
|
`--Saurornithoides junior
`--+--Scansoriopterygidae
`--+--+--Archaeopteryx
| `--Wellnhoferia
`--Eumaniraptora
|--+--+--Microraptor gui
| | `--+--Microraptor zhaoianus
| | `--Cryptovolans
| `--+--+--Sinornithosaurus
| | `--NGMC 91
| `--+--Bambiraptor
| `--+--Saurornitholestes
| `--+--IGM 100/1015
| `--+--+--Achillobator
| | `--+--Utahraptor
| | `--Velociraptor
| `--+--Deinonychus
| |--Dromaeosaurus
| `--Adasaurus
`--+--Unenlagia
`--+--Rahonavis
`--+--Shenzhouraptor
`--+--Jixiangornis
`--+--Yandangornis
`--+--+--Sapeornis
| `--Omnivoropteryx
`--+--+--Confuciusornis
| `--Changchengornis
`--+--Jibeinia
`--+--+--Protopteryx
| `--Longipteryx
`--+--Eocathayornis
|--Catalan nestling
|--Longirostravis
|--Sinornis
|--Concornis
|--Iberomesornis
`--+--+--Noguerornis
| |--Boluochia
| |--Neuquenornis
| |--Gobipteryx
| `--Enantiornis
`--+--Eoalulavis
|--+--Ambiortus
| `--Apsaravis
|--+--Patagopteryx
| `--+--Liaoningornis
| `--Songlingornis
`--+--Yanornis
`--+--Yixianornis
`--Ornithurae
Notable changes since last time
(http://www.cmnh.org/dinoarch/2003Dec/msg00549.html) -
- Yay! Tyrannosauroids are now coelurosaurs.
- Proceratosaurus is a coelurid.
- Therizinosaurus, Nanshiungosaurus and Neimongosaurus are segnosaurs.
- Pelecanimimus is a deinocheirid.
- Sereno-esque non-avepectoran segnosaurs.
- The lone maniraptorans change position (Yixianosaurus sister to Avepectra;
Protarchaeopteryx as basalmost paravian; Pyroraptor in Troodontidae).
- Archaeornithoides is a troodontid, close to Byronosaurus.
- Troodontidae rearranged, with Byronosaurus most basal, and Saurornithoides
monophyletic.
- Paulian non-eumaniraptoran archaeopterygids, and scansoriopterygids follow
them there.
- Microraptor/Cryptovolans as basal deinonychosaurs.
- Unenlagia as a basal avialan.
- Long-tailed avialans paraphyletic.
Mickey Mortimer