Geological periods
From the first large animals of the Ediacaran to today. Dates from the ICS International Chronostratigraphic Chart.
Ediacaran635–538.8 million years ago5 featured animalsCambrian538.8–486.85 million years ago12 featured animalsOrdovician486.85–443.1 million years ago3 featured animalsSilurian443.1–419.62 million years ago5 featured animalsDevonian419.62–358.86 million years ago9 featured animalsCarboniferous358.86–298.9 million years ago8 featured animalsPermian298.9–251.902 million years ago12 featured animalsTriassic251.902–201.4 million years ago21 featured animalsJurassic201.4–143.1 million years ago44 featured animalsCretaceous143.1–66 million years ago102 featured animalsPaleogene66–23.04 million years ago23 featured animalsNeogene23.04–2.58 million years ago33 featured animalsQuaternary2.58–0 million years ago27 featured animals