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Newcomer (Male) with a few things to share (2nd attempt)



Not sure if my first attempt at sending this quite worked (got one response saying it was truncated) so I'm sending this again.

Oh, and as for the person who thought I was female, I'm not. Jamie is actually short for James.

Hello, I'm kind of new here and I thought I'd introduce myself on the list (though I've been lurking around the archives for the past year or so.)

My name is Jamie Stearns. I am 18 and going into college, hopefully to become a paleontologist. I've been interested in dinosaurs since I was 5, and have recently completed a massive cladogram containing every taxon I could find sufficient information on, using several different websites as well as the archives of this list. I have attempted in most cases to find pictures or diagrams of the actual skeletal material to base my conclusions on, though much of it is somewhat of a compromise between different analyses. Due to the size of it, I'm going to start by posting a small part of it here.

Non-Coelurosaurian Theropods:
|--Ornithischia
|--Sauropodomorpha
|--Guaibasaurus
|--Eoraptor
|----Herrerasaurus
| `--Staurikosaurus
|--Segisaurus
|--Procompsognathus
|--Coelophysis
|--Syntarsus
|--Gojirasaurus
|--Liliensternus
|--Dilophosaurus
|-----Elaphrosaurus
|  |--Spinostropheus
|  |--Ceratosaurus
|  |--Rugops
|  |----Masiakasaurus
|  | `--Noasaurus
|  |----Abelisaurus
|  | `--Indosuchus
|  |--Ekrixinatosaurus
|  |----Aucasaurus
|  | `--Carnotaurus
|  |--Majungasaurus
|  `--Rajasaurus
|-------Megalosaurus
|  | `--Poekilopleuron
|  |--Torvosaurus
|  |----Baryonyx
|  | `--Suchomimus
|  |--Irritator
|  `--Spinosaurus
|--Eustreptospondylus
|--Gasosaurus
|-----Cryolophosaurus
|  |--Piatnitzkysaurus
|  |--Afrovenator
|  |--Monolophosaurus
|  |--Fukuiraptor
|  |-----Siamotyrannus
|  |  |--Metriacanthosaurus
|  |  |--Sinraptor
|  |  `--Yangchuanosaurus
|  |--Allosaurus
|  |--Neovenator
|  |--Acrocanthosaurus
|  |--Tyrannotitan
|  |--Carcharodontosaurus
|  |--Giganotosaurus
|  `--Mapusaurus
`--Coelurosauria

I could not find much information on *Dubreuillosaurus* and the identity of *Shuvosaurus* seems somewhat problematic, so I'm not sure exactly where to put either one.

I agree with Rauhut on the placement of *Dilophosaurus* as well as the inclusion of *Afrovenator* within Carnosauria (however, I find it to be somewhat more basal than Rauhut). Piatnitzkysaurus may belong here too, as it also seems to have the characteristic lacrimal ornamentation and the narrow frontal between the eyes shared by other carnosaurs, though I'm not sure its lacrimal is known.

I'm not sure why coelophysids are considered monophyletic. *Gojirasaurus* and *Liliensternus*, at least the reconstructions I've seen of them, appear to be closer to *Dilophosaurus* at least in size and robust build than either is to *Coelophysis*, though I may be missing something here.

Finally, *Elaphrosaurus* and it's relative *Spinostropheus* are also pretty hard to place, given that they're alternately placed as coelophysids (well, *Elaphrosaurus* at least), more derived ceratosaurs, basal abelisaurs, or even close to the beginning of Noasauridae. I have them as basal to (*Ceratosaurus*+Abelisauria) at the moment.