The correct answer is - Cenozoic; Quaternary; Holocene;
In the present we are living in the Cenozoic era, in the third period of it, the Quaternary, and in the Quaternary's seventh epoch, the Holocene.
The Cenozoic is an era that started 66 million years ago, when there was a massive meteorite impact, and a massive extinction in which the dinosaurs died out. It is the era of the mammals.
The Quaternary is a period that started 2.588 million years ago, and is divided into two epochs so far, the Pleistocene and the Holocene.
The Holocene is the most recent epoch, and the one we are living in, and it started only 11,800 years ago.
