Re: Details on SVP Thursday talks and posters (Part 1)

[jonathan.r.wagner@mail.utexas.edu]

Mickey Wrote:
>Godefroit and Bolotsky, 2001. 
     For the record, these authors (and their poster) did not show up [at 
least, not to my knowledge, and they were supposed to be right next to me].

>Wagner and Lehman, 2001. A new species of Kritosaurus from the Cretaceous of 
>Big Bend National Park, Brewster County, Texas. JVP 21(3) 110A-111A.
     Why are all my abstracts (all two of them) always split between pages?

>A new specimen (TMM 42452) from the Campanian Aguja Formation of Texas 
>includes a maxilla, nasals, a jugal, a quadratojugal, partial dentaries, other
     Not to pick nits, but one of the dentaries is nearly complete, the other 
is a barely identifiable scrap. Man, that is a fine (#*$&@#(&$ nit to pick, huh?

>cranial elements and a manus.  It is distinguished from other Kritosaurus 
>species by a wide, scoop-shaped dentary symphysis, W-shaped in anterior view.  
    Bear in mind in this discussion, the list of synonymies that drew an 
unusually fierce reaction from theropodocentric Mickey M.

Gryposaurus = Kritosaurus
Maiasaura = Brachylophosaurus
Prosaurolophus = Saurolophus
Anatotitan = Edmontosaurus
Corythosaurus = Hypacrosaurus

>Wagner's cladogram was something like
>... though I recall he said two of the hadrosaurine groups should have been 
>together, and the topology above was a typo in that regard.
    Silly theropod fan! The topology on the poster was slightly wrong, the 
topology Mickey gives is slightly farther off. The correct phylogenetic 
hypothesis, accidentally screwed up by the switch of a branch  during 
reformating for the poster is (with species of Kritosaurus removed for clarity):

((Kritosaurus, Hadrosaurus), (Brachylophosaurus, ((Edmontosaurus, Saurolophus), 
Lambeosaurinae)))

It will take some time to complete the dataset, and check the details in 
sufficient depth for this to be published. I gather that, apart from a small 
group of Japanese workers, no one else in the "hadrosaur systematics community" 
aggrees. Fun!

     Nice meeting everyone at SVP. Too busy to get into much more detail!

     Wagner