Before describing the three orders of events which occurred in the
Quaternary epoch, we shall present a brief sketch of the organic
kingdoms of Nature, namely, of the animals and vegetables which
flourished at this date, and the new formations which arose. Lyell, and
some other geologists, designate this the POST-TERTIARY EPOCH, which
they divide into two subordinate groups.--1. _The Post-Pliocene Period_;
2. _The Recent or Pleistocene Period._