A genuine fossil ammonite from Madagascar. This species has a very deep centre to it and fine ribbing. It is discreetly and permanently attached to a white plastic base.
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.
3/4 inch (1.9 cm) wide, 3/8 inch (0.95 cm) deep and 7/8 inch (2.2 cm) tall.