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Re: Eotriceratops-Better Image



Thomas R. Holtz, Jr. wrote:
From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu] On Behalf Of Danvarner@aol.com


http://dsc.discovery.com/news/2007/11/28/tricerotops-zoom.html


What is interesting is that even though it is so big, it is a subadult by
Horner & Goodwin's critera (epioccipitals are not yet completely fused with
frill; postorbital horns are not yet forward facing; etc.).

The skull in the figure on Discovery is a cast reconstruction. The original is pretty flattened (although there is good element representation). The appearance of incompletely fused epoccipitals is just a product of the cast reconstruction in the figure, and my impression from seeing the original material at the Ceratopsian Symposium is that it probably was a full adult. And a big skull!


Andy