Billion-year-old rocks reveal traces of ancient life

A recent discovery of organic compounds in billion-year-old ancient rocks in Australia helps illuminate the early history of eukaryotes, according to a new study.

Paleontology - Wikipedia

The oldest fossils on Earth show that 3.5 billion years ago there was life on our planet

Scientists find 'lost world' in billion-year-old Australian rock, Science and Technology News

Geologists solve half-century-old mystery of animal traces in ancient rocks

4.6-billion-year-old meteorite belongs to Earth's long-lost baby cousin

3.77-billion-year-old fossils stake new claim to oldest evidence of life, Science

Two-billion-year-old salt rock reveals rise of oxygen in ancient atmosphere

4.6 billion-year-old meteorite could reveal how Earth formed layers

3.7-billion-year-old fossils show early life, Earth

Life Helps Make Almost Half of All Minerals

Mystery of Grand Canyon's lost rocks may finally be solved

Fossil

Ancient Arrow Is Among Artifacts to Emerge From Norway's Melting Ice - The New York Times

The Oldest Chunk of Rock in the World – Greenland - Atlas Obscura