paleonet Foraminiferal Biostratigraphy From Thin Secti

[inselberg@xxxxxxxxx]

Dear Sirs and Ladies:

I am trying to determine the rough age of cherts
created by the silicification of chalks.  The
silicification of the chalk has preserved the
morphology and structure of the foraminifera
within the former chalk quite welll.  As a result, 
I am hoping to obtain an approximate idea of the
age of the source chalk from identifying, as
best as can be done, some of the foraminifers
in the chert.  Apparently, Sliter (1989) and
(1999) has published research about biostratigraphy
using thin sections of Cretaceous foraminifera in:

Sliter, W. V., 1989, Biostratigraphic zonation for
Cretaceous planktonic foraminifers examined in
thin section. Journal of Foraminiferal Research.
vol. 19, pp. 1-19.

Have additional studies about identifying foraminifera
in thin section been published for Cretaceous,
Paleocene, and Eocene planktonic foraminifers?

Also, I have seen cited a couple of times:

Sliter, W. V., 1999, Cretaceous planctonic
foraminifers examined in thin section. US
Geological Survey . Special Publication.

 If it exists, where might a person find a copy of it?

Yours,

Paul V. Heinrich
Baton Rouge, LA