Beginnings, Cenozoic Era (66 mya-Present), Evolution of Life (4600 mya-Present), Neogene Period (66-2.58 mya), Palaeocene Epoch (66.0-56.0 mya), Phanerozoic Eon (541 mya-Present) Beginnings, Evolution of Life: Palaeocene Epoch (66.0-56.0 mya), Mammals November 22, 2024 — 0 Comments