Hi Charles,
It is: Mid-Pleistocene, Okeechobee formation, Loxahatchee member.
Palm Beach Aggregates, Inc., Quarry, Loxahatchee, Palm Beach Co., FL
www.palmbeachag.com
(Loc: on the north side of US Hwy 98 just east of "20 Mile Bend" where 98
crosses the canal)

I can't seem to find where I've shelved my copies (probably loaned out)
But the information is probably contained in:

Edward J. Petuch, & Charles Roberts, 2007
The Geology of the Everglades and Adjacent Areas, CRC Press.
        and/or
Edward J. Petuch, 2003
Cenozoic Seas: The View From Eastern North America, CRC Press.

The Rucks Pit is not a comparable site, differing formations.
It is a considerable distance to the north at Ft. Drum.
However, as is at many site, there is some faunal overlap.

Les

-----Original Message-----
Sent: Sunday, March 07, 2010 10:52 PM
To: [log in to unmask]
Subject: [CONCH-L] Palm Beach Aggregate Pits

Folks,
If any of you collect fossils in Florida, would you know what formations
are mined at the palm Beach Aggregates Pit in Loxahatchee. Thanks.
Regards,
Charlie

----------------------------------------------------------------------
[log in to unmask] - a forum for informal discussions on molluscs
To leave this list, click on the following web link:
http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1
Type your email address and name in the appropriate box and
click leave the list.
----------------------------------------------------------------------