Preserved in a large rectangular block of chalk is this stunning and rare example of this cretaceous chalk sponge. The sponge has been expertly prepared. Examples like this are very seldom seen for sale as most of them end up in museum collections. This is a particularly fine and extremely sought after specimen.
This Gryphea has been fully prepared and has a nautilus shell attached to the main fossil which is a lovely feature. The detail throughout the specimen is fine and would be a good addition for the collector. Approximately 198 million years old.
A good sized specimen which has been preserved in solid calcite and fully prepared. Both valves of the bivalve have been preserved and intact. Very nice detail throughout. Approximately 198 million years old.