Eon in Earth history, consisting of the most recent 570 million years. It comprises the Palaeozoic, Mesozoic, and Cenozoic eras. The vast majority of fossils come from this eon, owing to the evolution of hard shells and internal skeletons. The name means interval of well-displayed life.
The star depicts Liberia as a shining light. The blue canton symbolizes the dark continent of Africa. The stripes represent the 11 signatories to the Declaration of Independence. Effective date: 26 July 1847.