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.)