Question

quaternarys also another name

Answer 1

The Quaternary Period is divided into two epochs: the Pleistocene (2.588 million years ago to 11.7 thousand years ago) and the Holocene (11.7 thousand years ago to today). The informal term "Late Quaternary" refers to the past 0.5–1.0 million years.

Answer 2

good morning.....
tertiary from last quaternary no.
it's just lastest number use for no. of orbits, and other terms in the physics, chemistry.
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