Kind of organism (like "rodents"):   ... or scientific or English name:

Time interval: modern Holocene Pleistocene - Holocene Late Pleistocene Middle Pleistocene Early Pleistocene Late Pliocene Early Pliocene Late Miocene Middle Miocene Early Miocene Late Oligocene Early Oligocene Late Eocene Middle Eocene Early Eocene Late Palaeocene Middle Palaeocene Early Palaeocene Maastrichtian Campanian

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