This fossil ammonite has been lightly polished to show the rich brown mineralization and the intricate suture lines between the chambers of its shell. It comes from Madagascar and is discreetly and permanently attached to a silver coloured stand. It does have a visible mark across the end of the fossil, possibly from a saw blade used in preparing the specimen.
Ammonites are extinct relatives of modern day nautiloids and squid. The largest known ammonite in the world would have been 8 1/2 feet (2.59 metres) across if it were complete.
1 1/4 inches (3.2 cm) wide, 1/2 inch (1.3 cm) deep and 1 1/16 inches (2.7 cm) tall.