Polished goniatite, Morocco
A striking white and black fossil goniatite from Morocco. Goniatites are members of the ammonoid family but lived earlier than ammonites, from around 390 - 252 million years ago. They have simpler shell sutures (the lines between the shell chambers) than ammonites. Being a naturally preserved item this one is asymmetric back to front as you can see from the sideways photo but it displays beautifully from the front. It is discreetly and permanently attached to a polished black onyx base.
Ammonoids 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, so although this is a fairly large piece in 1:12 scale it is entirely appropriate.
1 1/16 inches (2.7 cm) wide, 3/4 inch (1.9 cm) deep and 1 1/4 inches (3.2 cm) tall.