55 million years ago

by Smith609, design adapted from Luxo's

on the international stratigraphic timescale 
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When Phanerozoic era, Cenozoic eon, Paleogene period, Eocene subperiod, Early Eocene epoch, Ypresian stage
Timeline
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Compiled using data from the GeoWhen database. Discuss this implementation by Martin Smith.
Geological timescale by GeoLogic is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License. Creative Commons License
Based on a work at www.geological-supplies.com.