A coprolite is fossilised animal dung. Coprolites are classified as trace fossils as opposed to body fossils as they give evidence for the animal's behaviour (in this case diet) rather than morphology.The name is derived from the Greek words kopros meaning 'dung' and lithos meaning 'stone'.
They serve a valuable purpose in palaeontology because they provide direct evidence of the predation and diet of extinct organisms. Coprolites may range in size from a few millimetres to over 60 centimetres.
Like other fossils coprolites have had much of their original composition replaced by mineral deposits such as silicates and calcium carbonates.
Please note: Each poo may differ in size, shape or colour. It also does not smell.