History of Life on Earth
Dec 1, 1000
Marine InvertebratesThis is when the fossil record shows the first appearances of Marine Invertibrates. 570 million years ago
Period: Dec 1, 1000 to Dec 1, 1325
Dec 1, 1030
FishEvidence of the first fish from the fossil record tells us that they appeared on Earth about 440 million years ago
Dec 1, 1170
AmphibiansEvidence of the first amphibians on Earth appears in the fossil record about 400 million years ago.
Dec 1, 1210
InsectsThe first Insects appear in the fossil record around 360 million years ago.
Dec 1, 1220
ReptilesThe evidence of the first reptiles appears in the fossil record about 350 million years ago.
Period: Dec 1, 1325 to Dec 1, 1504
Dec 1, 1362
DinosoursEvidence of the first dinosaurs appears on the fossil record about 208 million years ago.
Dec 1, 1426
MammalsThe first mammal fossils seen are about 144 million years old.
Period: Dec 1, 1504 to
Dec 1, 1570
HumansThere is evidence of the first modern humans evolving between 400,000 and 250,000 years ago