Our Geologic Time mug will remind you of your days as an amateur paleontologist digging in the yard and collecting shells on the beach. It’s a colorful tutorial with fossils and key events for 26 eons, epochs, and eras. 4.56 billion years in the making. Inside the mug: elrathia kingii – relief of a trilobite fossil! Holds 14 oz / 400ml. Dishwasher and microwave safe.