Paleocene
pa·leo·cene
noun
1.
from 63 million to 58 million years ago; appearance of birds and earliest mammals
Origin
From French Paléocène. Coined by French botanist Wilhelm Philippe Schimper in 1874. By surface analysis, paleo- + -cene.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.