ORTHOCERAS

Just keep swimming...

But like somewhere around 443.8 and 481.5 million years ago. During the Ordovician geological period, the reign of invertebrates and mollusks, these little buddies were having ball. Orthoceras means 'straight horn' so think of a cone with tentacle-y thing out the end and this is the fossil. Neat and powerful. 

Orthoceras set in silver with a 14/20 gold-fill band. 

Size 8 3/4