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The Kosmoceratops-Utahceratops cladogram



As PLoS ONE's figure and pdf server are currently down, for those who just
can't wait for the phylogenetic punchline, here it is:

Ceratopsidae
|--Centrosaurinae
`--Chasmosaurinae
   |--Chasmosaurus
   |  |--Chasmosaurus belli
   |  `--Chasmosaurus russelli
   `--+--Mojoceratops perifania
      `--+--Agujaceratops mariscalensis
         `--+--+--Pentaceratops sternbergii
            |  `--Utahceratops gettyi
            `--+--Coahuilaceratops magnacuerna
               `--+--+--Kosmoceratops richardsoni
                  |  `--Vagaceratops irvinensis
                  `--+--Anchiceratops orantus
                     `--+--Arrhinoceratops brachyops
                        `--+--Eotriceratops xerinsularis
                           |--Ojoceratops fowleri
                           `--+--+--Torosaurus latus
                              |  `--Torosaurus utahensis
                              `--+--Nedoceratops hatcheri
                                 `--+--Triceratops horridus
                                    `--Triceratops prorsus

Or, depending how lumpy you want it, the last 5 species can be "Triceratops
horridus"...

Thomas R. Holtz, Jr.
Email: tholtz@umd.edu   Phone: 301-405-4084
Office: Centreville 1216                        
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
http://www.geol.umd.edu/~tholtz/
Fax: 301-314-9661               

Faculty Director, Science & Global Change Program, College Park Scholars
http://www.geol.umd.edu/sgc
Fax: 301-314-9843

Mailing Address:        Thomas R. Holtz, Jr.
                        Department of Geology
                        Building 237, Room 1117
                        University of Maryland
                        College Park, MD 20742 USA