'Age of Mammals' definitions:
Definition of '
Age of Mammals
'
From:
WordNet
noun
Approximately the last 63 million years [syn:
Cenozoic
,
Cenozoic era
, Age of Mammals]
Definition of '
Age of mammals
'
From:
GCIDE
Mammal \Mam"mal\, n.; pl.
Mammals
. [L. mammalis belonging to the breast, fr. mamma the breast or pap: cf. F. mammal.] (Zool.) One of the Mammalia. [1913 Webster]
Age of mammals. See under
Age
, n., 8. [1913 Webster]
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