tertiary period

Noun tertiary period has 1 sense

• tertiary period(n = noun.time) tertiary - from 63 million to 2 million years ago;
is a part of age of mammals, cenozoic, cenozoic era
has parts: pliocene, pliocene epoch, miocene, miocene epoch, oligocene, oligocene epoch, eocene, eocene epoch, paleocene, paleocene epoch
is a kind of geological period, period