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Re: Chinese Boid Watching...

At 05:19 PM 6/6/99 -0400, Dinogeorge@aol.com wrote:
>Radiometric dates are given for four separate Liaoning assemblages....
>[1] Confuciusornnis-Sinosauropteryx-Zhangheotherium Assemblage
>Jianshangou bed of lower Yixian Formation, Sihetun; dated 125.42+-0.08Ma and 
>125.52+-0.07Ma (two different tuff samples), middle Barremian, Early 

Is this solid enough to settle the controversy over the dating of these faunas?

Or is there still enough uncertainty to allow some to continue to claim a
Late Jurassic date for them?

May the peace of God be with you.         sarima@ix.netcom.com