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RE: Viva Neornithine Birds!

 All I want are hypotheses for why neornithines.  

For a testable and partly tested hypothesis based on physics of the impact,
see Robertson et al., 2004, Survival in the first hours of the Cenozoic,
Geological Society of America Buletin, May/June 2004, v. 116:5/6; 760-768.
The prediction is that sheltering behavior made a critical difference in

Sylvia Hope, PhD.
Dept. of Ornithology and Mammalogy
California Academy or Sciences
875 Howard St.
San Francisco, CA 94103, U.S.A

Telephone (415) 321-8373
E-mail shope@calacademy.org