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Re: TRICERATOPS AND PSITTACOSAURUS ARE NOT OVERSPLIT
In a message dated 3/7/01 12:01:21 AM Pacific Standard Time,
<< T. horridus and T. prorsus do overlap somewhat temporally, but there are
periods where the only Triceratops kind in existence was the T. horridus
Is there now enough resolution to Hell Creek/Lance straitigraphy across
the large area in which it is exposed to make such a statement? I remember
the difficulties encountered by trying to divide the North Dakota Hell Creek
into members. This was a while back, however...
<< Additionally, it seems that when a lot of Triceratops specimens are
found together, the kinds don't mix. >>
Are you talking bonebed? If not, ditto above. DV.