RE: Hell Creek (long)

["Williams, Tim" <TiJaWi@agron.iastate.edu>]

John Bois wrote:

> As mentioned in the archives, the iridium layer in India is not
> indicative of K/T boundary--i.e., the spike is _before_ 
> extinction: "...profuse occurrence of (non-reworked) theropod 
> eggshells...in beds overlying the iridium-enriched levels.  
> Bajpai, S. and GVR Prasad.  2000 Cret. age for Ir-rich Deccan
> intertrappean deposits: palaeontological evidence from Anjar, western
> India.  J. of the Geol. Soc., London Vol 157 pp. 257-260.


These eggshell fragments are all of the 'ornithoid' type, correct?  I
haven't read the paper - so this maybe an extremely stupid question - but
can you rule out the possibility that these eggshells came from ratites or
some other type of bird?




Tim


----------------------------------------------------------- 


Timothy J. Williams, Ph.D. 

USDA-ARS Researcher 
Agronomy Hall 
Iowa State University 
Ames IA 50014 

Phone: 515 294 9233 
Fax:   515 294 9359