Fossil

Science Daily: Life thrived on young Earth: scientists discover 3.7-billion-year-old fossil - Remarkable find by team of Australian researchers points to earliest existence of diverse life on Earth

summary - A team of Australian researchers has uncovered the world's oldest fossils in a remote area of Greenland, capturing the earliest history of the planet and demonstrating that life on Earth emerged rapidly in the planet's early years. The team discovered 3.7-billion-year-old stromatolite fossils in the world's oldest sedimentary rocks, in the Isua Greenstone Belt along the edge of Greenland's icecap.