Tournaisian

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

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What Wikipedia says

The Tournaisian is in the ICS geologic timescale the lowest stage or oldest age of the Mississippian, the oldest subsystem of the Carboniferous. The Tournaisian age lasted from 358.86 Ma to 346.7 Ma. It is preceded by the Famennian (the uppermost stage of the Devonian) and is followed by the Viséan.

Excerpt from the Wikipedia article “Tournaisian”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Fama Clamosa, CC BY-SA 4.0, via Wikimedia Commons.