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Definition of Paleocene
1. Noun. From 63 million to 58 million years ago; appearance of birds and earliest mammals. 
Exact synonyms: Paleocene Epoch
Group relationships: Tertiary, Tertiary Period
Generic synonyms: Epoch
Group relationships: Tertiary, Tertiary Period
Generic synonyms: Epoch
Definition of Paleocene
1. [adj]




 Asturian
 Asturian