Re: Details on SVP 2001 Friday talks

----- Original Message -----

From: Nick Longrich

Regarding troodontids, for the most part they seem to be every bit as birdlike as the dromaeosaurids.

As much like Archaeopteryx, like Pygostylia or both? :-)

Another problem is Rahonavis; I think that there are a number of remarkably dromaeosaurid-like features which were not included in the initial analyses, enough to make a real difference in where they come out.

I think we're supposed to wait for a paper on what these features are? :-9

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The following may be interesting for the next debate on who survived the K-T: http://www.nature.com/nlink/v414/n6859/abs/414062a0_fs.html (strange, I can get into the full text!), in this week's Nature, presents evidence that Zalambdalestidae is paraphyletic with respect to Glires (rodents, lagomorphs etc.), so apparently the crown group Placentalia existed in the Cretaceous. Protungulatum is explicitely called "Tertiary". The following is not cited and Zhelestidae comes out, with not too strong support, as close to ungulates.

M. J. Novacek: New eutherian mammal from the Late Cretaceous of Mongolia and its bearing on the origins of the modern placental radiation, JVP 20(3) SVP Meeting Abstracts September 2000, p. 61A
http://www.cmnh.org/fun/dinosaur-archive/2001May/msg00796.html

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6. A negative experiment signifieth: thou hast forgotten to neutralize the A T P. A positive experiment signifieth: thou hast forgotten to neutralize the T P N. The increase at 340 mu hath been caused by turbidity of slowly precipitating P R O T E I N S.

What is TPN?