Coevolution of angiosperms and pollinators

[Andersons <banderson@xxxxxxxxxxxx>]

Dear Members,

I am currently writing a student research paper on "The coevolution of 
angiosperms and pollinators".  In the course of doing my research I have 
come across work done by Stephen Hasoitis and the discovery of ancient 
bees nests found within the Morrison Formation in northeastern Arizona 
and have been in contact with him.  Is there anyone out there who can 
shed additional light on the question, "which came first - angiosperms 
or bees?  I have many other questions and would like to enter into 
dialog with knowledgeable  individuals on this topic.

I have long been an amateur naturalist interested in botany and bees.  
I am writing this paper in partial fulfillment of course requirements 
for a course in "Evolution and Earth History", which I am taking to 
satisfy New York state teacher certification criteria.

Bob Anderson