RE: Coelurosauria

[Michael Mortimer <mickey_mortimer111@msn.com>]

Jamie Stearns wrote-

> |--+---Huaxiagnathus
> |....`--+---+---Compsognathus
> |.........|......`---Mirischia
> |.........`---Juravenator
> |...........`---Sinosauropteryx
> `---Nedcolbertia
> ..`---Scipionyx
> ....`--+---Ornitholestes
> ......|...`---Proceratosaurus
> ......`---Santanaraptor
> ........|--+--+---Bahariasaurus
> ........|....|.....`---Dryptosaurus
> ........|....`---Guanlong
> ........|......`--+---Itemirus
> ........|.......|....`---Stokesosaurus
> ........|.......`---Aviatyrannis
> ........|.........`---Eotyrannus
> ........|...........`---Dilong
> ........|.............`---Alectrosaurus
> ........|...............`---Alioramus
> ........|.................`---Appalachiosaurus
> ........|...................`--+---Albertosaurus
> ........|.....................|...`---Gorgosaurus
> ........|.....................`---Daspletosaurus
> ........|.......................`---Tarbosaurus
> ........|..........................`---Tyrannosaurus
> ........`---Coelurus
> ..........`---Tanycolagreus
> ............`--+---Deinocheirus
> ..............|...`---Pelicanimimus
> ..............|.....`---Shenzhousaurus
> ..............|.......`---Harpymimus
> ..............|.........`---Garudimimus
> ..............|...........`---Archaeornithomimus
> ..............|.............`---Sinornithomimus
> ..............|...............`---Gallimimus
> ..............|.................`---Anserimimus
> ..............|...................`---Dromiceiomimus
> ..............|.....................`---Ornithomimus
> ..............|.......................`---Struthiomimus
> ..............`--+---Alvarezsaurus
> ................|...`---Patagonykus
> ................|.....`---Parvicursor
> ................|.......`---Mononykus
> ................|.........`--Shuuvuia
> ................|--+--+--+---Incisivosaurus
> ................|....|....|.... `--Protarchaeopteryx
> ................|....|....`--+---Caudipteryx
> ................|....|......|....`---Nomingia
> ................|....|......`---Avimimus
> ................|....|........`--+----Caenagnathasia
> ................|....|..........|...`---Hagryphus
> ................|....|..........|.....`---Chirostenotes
> ................|....|..........|.......`---Elmisaurus
> ................|....|..........`--+---Ingenia (preoccupied name that will 
> have to be changed)
> ................|....|............|...`---Conchoraptor
> ................|....|............|.....`--Khaan
> ................|....|............`---Rinchenia
> ................|....|..............`---Oviraptor
> ................|....|................`---Citipati
> ................|....|..................`--Nemegtomaia
> ................|....`---Falcarius
> ................|......`---Beipiaosaurus
> ................|........`---Alxasaurus
> ................|..........`---Neimongosaurus
> ................|............`---Nothronychus
> ................|..............`---Erlikosaurus
> ................|................`---Nanshiungosaurus
> ................|..................`---Segnosaurus
> ................|....................`--Therizinosaurus
> ................`--+---Sinovenator
> ..................|...`---Sinornithoides
> ..................|.....`---Byronosaurus
> ..................|.......`---Saurornithoides
> ..................|.........`---Troodon
> ..................|--+---Buitreraptor
> ..................|....`---Unenlagia
> ..................|......`---Rahonavis
> ..................`---Achillobator
> ....................`---Adasaurus
> ......................`---Dromaeosaurus
> ........................`---Utahraptor
> ..........................`---Deinonychus
> ............................`--+---Saurornitholestes
> ..............................|...`---Velociraptor
> ..............................`---Bambiraptor
> ................................`---Sinornithosaurus
> ..................................`---Microraptor
> ....................................`---Archaeopteryx
> ......................................`---All other birds

Among the odder things in your cladogram, I'm interested why you placed-
Bahariasaurus/Deltadromeus in Tyrannosauroidea?
Dryptosaurus basal to Guanlong, Dilong and Eotyrannus?
Eotyrannus basal to Dilong?
Ornithomimus closer to Struthiomimus than Dromiceiomimus.
Deinonychus outside the Velociraptor+Aves clade?
Achillobator as the most basal of the dromaeosaur+Aves clade?

> Given that just about everything once referred to Bahariasaurus has been 
> reassigned to Deltadromeus and upon further examination of what's left, 
> only 1 character serves to separate the two, I feel fairly comfortable 
> sinking Deltadromeus into Bahariasaurus.

Ah, so this is a case of placing Deltadromeus and Dryptosaurus together. See 
http://students.washington.edu/eoraptor/Ceratosauria.htm#Deltadromeusagilis 
.

Mickey Mortimer