Ammonite Dactylioceras slice BONES twice the size of its

twice the size of its contemporary cousin

From the Upper Ordovician

This species is thought to be distantly related to modern-day herrings and sardines

Large: 7cm x 8

Ammonite Dactylioceras slice BONES twice the size of itsThe polished cross section of a Dactylioceras ammonite. The preparation of these ammonites highlights the crystalline formations inside the once empty chambers of the ammonite shell. Ammonites from this UK region also contain iron pyrite, or fools gold, giving them a natural glimmer in the right light. From Whitby, Yorkshire, England. Jurassic, circa 180 million years old. Ammonite will be approximately 5cm 7cm. Measurements are approximate and the