Timeline of Life on Earth









Blue-green Algae 3.8-2.5 billion years ago ARCHAEN PERIOD
Metazoans (Multicellular Animals) 650-543 MILLION YEARS AGO VENDIAN PERIOD
Trilobites 543-490 million years ago CAMBRIAN PERIOD
Land Plants 490-443 million years ago ORDOVICIAN PERIOD
Amphibians 417-354 million years ago DEVONIAN PERIOD
Dinosaurs 248-206 million years ago TRIASSIC PERIOD
Birds 206-144 million years ago JURASSIC PERIOD
Mammals 144-65 million years ago CRETACEOUS PERIOD
Primates 54.8-33.7 million years ago EOCENE EPOCH
Hominids 5.3-1.8 million years ago PLIOCENE EPOCH
Modern Man (Homo Sapiens) 1.8 million to 11,000 years ago PLEISTOCENE EPOCH (Now we're in the Holocene epoch.)