Examples for

Geologic Time Scale
Keep your geochronological dates straight with Wolfram|Alpha's detailed information on Earth's geologic time scale. Drill down from the eons through the epochs and analyze data on the climate changes, impacts, extinctions and continental shifts that formed the unique geology of each time division.

Geochronology

Travel back through time with data spanning eons.

Get information about a geological eon, era, period or epoch:

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Properties of Geologic Time Units

Query for properties of geochronology.

Compute the duration of a geological time division:

Find relationships between geological time divisions:

Compare information across geological time divisions:

Get data on biodiversity:

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Ice Ages

Explore the various ice ages, glaciations and interglacial periods that have occurred throughout geologic time.

Query for ice ages or the individual glacial episodes within them:

Compare the geological time periods of the various ice ages:

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Notable Ancient Events

Discover a variety of notable events that occurred during various geologic time units.

Identify events occurring during a specified division:

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Paleoclimate

Discover how the Earth's climate has changed over time.

Get climate information:

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Paleogeography

Visualize the position of Earth's continental plates over time.

Generate maps of ancient continent configurations:

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Geochronology Lookup

Determine the geological time unit, and related information, that corresponds to an ancient date in the past.

Find the geological epoch corresponding to a given time:

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