New ceratopsid paper

["Andrew A. Farke" <andyfarke@hotmail.com>]

This just out. . .

Farke, A. A. 2004. Ceratopsid dinosaurs from the Upper Cretaceous Almond
Formation of southwestern Wyoming. Rocky Mountain Geology 39:1-5.

Abstract:

        The 1937 American Museum of Natural History (AMNH)-Sinclair Oil
Company joint expedition to the late Campanian and early Maastrichtian
Almond Formation of the Rock Springs Uplift, southern Wyoming, recovered two
ceratopsid cranial specimens. AMNH 3652, a partial skull lacking the frill,
is characterized by elongate, procurving postorbital horns and a deep
rostrum. Although the specimen cannot be identified to the generic or
specific level, it appears to be closely related to the clade of
chasmosaurine ceratopsids including Anchiceratops, Arrhinoceratops,
Diceratops, Torosaurus, and Triceratops, exclusive of Pentaceratops and
Chasmosaurus. AMNH 3656, a frill fragment, is characterized by large,
triangular marginal processes and an average thickness in excess of 40 mm.
This specimen is similar to previously reported Anchiceratops frills. The
Almond Formation ceratopsid specimens are significant because they represent
two early occurrences of chasmosaurine ceratopsids, as well as a unique
fossil occurrence in southern Wyoming.

________________________________
Andrew A. Farke, Graduate Student
Department of Anatomical Sciences
Stony Brook University
T8 040 Health Sciences Center
Stony Brook, NY  11794-8081
 
Phone: 631-444-7364