Dundrum Flooring

The floor in Dundrum is very special and expensive because it contains ammonites. It is a limestone floor but the limestone has ammonites in it.

AmmonitesThey are an extinct group of marine creatures. They are invertibrates and they are subtitled as Ammonoidea. They are said to be in the same family as octopuses, squid and cottlefish, they are shelled though.
They are excellent index fossils. It is possible to link the rock in which they're fossil is found to a specific geological time period.