|
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? << For
Iliosuchus’s placement see Foster & Chure, 2000 Foster,
J. R, and Chure, D. J., 2000, An ilium of a juvenile Stokesosaurus (Dinosauria, Theropoda) from the Morrison
Formation (Upper Jurassic: Kimmeridgian), Meade County, South Dakota: Brigham
Young Univeristy, Geology Studies, v. 45, p. 5-10. Also
in that volume are; Chure, D. J., 2000, Utah’s first Allosaurus
– Marsh’s “megalosaurus”
specimen rediscovered: Brigham Young University, Geology Studies, v. 45, p.
1-4. And
Maxwell, W. D., and Cifelli R. L., 2000, Last evidence of sauropod
dinosaur (Saurischia: Sauropodomorpha) in the North American Mid-Cretaceous:
Brigham Young University Geology Studies, v. 45, p. 19-24. Which
describes very small brachiosaurids teeth which are believed to be from an
adult. >>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). << And Ford
and Chure in press, as well as the Jordan Theropod (also, Carr &
Williamson, 2000). Carr,
T. D., and Williamson T. W., 2000, A review of tyrannosauridae (Dinosauria,
Coelurosauria) from New Mexico: In: Dinosaurs of New Mexico, edited by Lucas S.
G., and Heckert A. B., New Mexico Museum of Natural History and Sciences,
Bulletin 17, p. 113-145. >>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). << Ditto, see
above. >>As Aublysodon teeth have been reported from many sites ranging
from Kimmeridgian-Maastrichtian, they are probably simply the teeth of juvenile
tyrannosaurids.<< I totally
agree. Mickey
Mortimer Tracy L. Ford P. O. Box 1171 Poway Ca 92074 |