And now I have to update the webnotes for class... :-) Thomas R. Holtz, Jr.
And now I'm getting deeply interested in the stratigraphy. Is it from the Daohugou Beds? If so, is it _really_ from the Daohugou beds? And how old are _they_ really? Really really?
Lithostratigraphic correlation in northeastern China is clearly very difficult. There are hairpin-shaped layers, and much of the area consists of 1000 m high rolling hills, one after the other for hundreds of km in every direction.