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Re: rampant speculation
The information comes from Kirkland et al. (1998), who list
Hypsilophodontidae indet. in a faunal list of the North Horn Formation.
They state "screenwashing microvertebrate sites has increased faunal
diversity" and reference Cifelli et al. (in press). Listed taxa
are-Troodontidae, Tyrannosaurus, Alamosaurus, Ankylosauridae?,
Hypsilophodontidae, Hadrosauridae, Pachycephalosauria and Torosaurus.<
Doh! I forgot Akylosauridae and _Alamosaurus_! My copy of this volume is
burried at the moment, since I am in transit to school from home. What are
they basing the Pachycephalosauria on? I haven't heard of any skull frags
from there (which vastly puzzled me this summer, actually). I guess I'll
have to read the paper (again, apparently my mind is failing...) when I get
back down to school to see what the deal is...
Student of Geology
Northern Arizona University
P.O. Box 20840
Flagstaff, Az. 86011
"A _Coelophysis_ with feathers?"
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