English archaeologist and anthropologist. In 1948 she discovered, on Rusinga Island, Lake Victoria, East Africa, the prehistoric ape skull known as Proconsul, about 20 million years old; and human footprints at Laetoli, to the south, about 3.75 million years old.
The quetzal, the national bird of Guatemala, symbolizes freedom. The blue bands stand for the Caribbean Sea and the Pacific Ocean. The weapons represent the defence of liberty. Effective date: 15 September 1968.