That's us, or rather our impact on the physical disposition of the planet. Here's how it goes:
the Pleistocene, 2.5 million years ago to 12 thousand years ago, saw the emergence of humans from clever apes.
the Holocene, 12 thousand years ago to to 1800 AD, from agriculture to industry and the emergence of loosely integrate world order of human commerce and exchange;
and now the Anthropocene, 1800 AD the present and into the future, when industry started pumping CO2 into the atmosphere, little knowing the consequences.
The anthropocene is mapped out in images of the earth at Globaïa. H/t Tim Morton.