agc 06/14/94 initiated,
09/19/94 revised, and 01/27/98 overhauled.
bmw 05/08/97
-- gave the receptaculitids a lick of paint, as it were.
agc -- 01-28-2000,
updated the hexactinellid pages with some new pictures and information on
recently documented sponge reefs off the coast of British Columbia, Canada.
IMAGE CREDITS:
The majority of pictures on these sponge pages were taken or drawn by AGC.
Several photographs of fossil sponges on these pages were taken by BMW. The
picture of Paleophragmodictya was taken by Lisa-ann Gershwin. All images were
used with permission.