Pleistocene definition by Wordo

Adjective

Of

a

geologic

epoch

within

the

Quaternary

period

from

about

2

,

588

,

000

to

11

,

700

years

ago

(

earlier

definition

1

.

7

million

to

11

,

000

years

ago

);

marked

by

the

evolution

of

man

,

and

the

extinction

of

the

large

mammals

.

Proper noun

The

Pleistocene

epoch

.