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Re: Maniraptoran Tyrannosaurs



Nicholas Gardner wrote-
 
Neocoelurosauria
 
This is an unpublished name.  The correct term for this clade (Maniraptora + Ornithomimus) is Maniraptoriformes.
 
|     |  |  `--+--Avimimidae
|     |  |     |  |--Avimimus
|     |  |     |  |--Kakuru
|     |  |     |  `?-Timimus
 
Interesting placement.  Might I ask why you think Timimus is an avimimid?
 
|     |              `--Therizinosaurinae
|     |                 |?-"Chilantaisaurus" zheziangensis
|     |                 `--Therizinosaurus
 
Hmm.  My comment on these two was that they're both comparable, not that they're both related.
 
|     `--Tyrannoraptora
|        |--Eumaniraptora
|        |  |?-Troodontidae
|        |  `--+--Aves
|        |     `--Dromaeosauroidea (implied in Matthew & Brown,
 
In this case, your Tyrannoraptora clade (Tyrannosaurus + Neornithes) would actually be termed Paraves (closer to Neornithes than to Oviraptor).  Eumaniraptora (Deinonychus + Neornithes) would be one step higherthan you have it, uniting Aves and "Dromaeosauroidea".  Why do you use "Dromaeosauroidea" when Deinonychosauria (everything closer to Deinonychus than to Neornithes) would work well here?
 
|        `--Tyrannosauroidea
|           |== proto-tyrannosaurs
|           `--+--Iliosuchidae
|              |  |?-Stokesosaurus
|              |  `--+--Eotyrannus
|              |     `--Iliosuchus
|              `--Tyrannosauridae
|                 |--Alectrosaurus
|                 `--+== i.s. Alioramus, Dinotyrannus, Labocania
|                    |--Albertosaurinae
|                    |  |== i.s. Deinodon
|                    |  |--Albertosaurus
|                    |  `--Gorgosaurus
|                    `--Tyrannosaurinae
|                       |?-Aublysodon
|                       |?-Shanshanosaurus
|                       `--+--Daspletosaurus
|                          `--Tyrannosaurini
|                             |--Tarbosaurus
|                             `--+?-Nanotyrannus
|                                `--Tyrannosaurus
 
Regarding your Iliosuchidae, why do you include Eotyrannus? Are you aware that the only element we could even compare in Eotyrannus and Stokesosaurus is the premaxilla?  The ilium of Eotyrannus is very fragmentary.  Dinotyrannus and Nanotyrannus are both young Tyrannosaurus rex (Carr, 1999).  Shanshanosaurus seems to be a juvenile Tarbosaurus (Currie and Dong, in prep.).  Aublysodon is an indeterminate juvenile tyrannosaurid tooth, but remains referred to it have been shown to be Daspletosaurus (OMNH specimen) and Tyrannosaurus (Jordan theropod).  As Aublysodon teeth have been reported from many sites ranging from Kimmeridgian-Maastrichtian, they are probably simply the teeth of juvenile tyrannosaurids.
 
Mickey Mortimer