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.
Preserved on a block of chalk is this beautiful specimen. The specimen has been carefully prepared using air abrasive techniques to reveal the fine ornamentation on the shell as well as the delicate long spines. There are modern forms of Spondilus "Spiny Oysters" that still exist today. A very aesthetic and fine specimen.
A lovely example which was discovered in 1989 from this world famous Silurian locality. The detail is fine throughout especially under a hand lens. A very nice addition for the collector. Approximately 425 million years old.
A beautifully preserved slice through a piece of wood revealing the internal and external details of these fossilised shipworms. A fantastic study fossil for the collector which is approximately 50 million years old.