Attributes of the ceratopsian dinosaurTorosaurus, and new material from the Javelina Formation (Maastrichtian) of Texas

• DOI: 10.1666/06-107.1
• Publication Date: 2008-11-03T19:50:48Z
• Authors: Rebecca K. Hunt; Thomas M. Lehman
• Keywords: Postcrania; Parietal bone

A bone bed in the middle part of Javelina Formation (Maastrichtian) Texas yielded parts about 37 identifiable ceratopsid dinosaur bones, mostly appendicular and limb girdle elements belonging to one juvenile two adult individuals Torosaurus cf. utahensis. The is a lag assemblage comprising large immobile skeletons accumulated an abandoned stream channel. In general form proportions postcranial bones are similar those Pentaceratops sternbergi not as robust latus or Triceratops horridus. few cranial preserved, including parietal, squamosal, maxilla, dentaries. parietal fragment comparable that more nearly complete specimen utahensis collected nearby at same stratigraphic level. material provides basis for first skeletal reconstruction this enigmatic horned dinosaur. Most characters used diagnoses T. inadequate. Only raised bar along squamosal/parietal suture, present latus; midline epiparietal, absent , may discriminate species.