The Devonian is a geologic period and system of the Paleozoic era during the Phanerozoic eon, spanning 60.3 million years from the end of … See more

The Devonian was a relatively warm period, although significant glaciers may have existed during the Early and Middle Devonian. The … See more

Marine biota
Sea levels in the Devonian were generally high. Marine faunas continued to be dominated by … See more

• Devonian portal
• Falls of the Ohio State Park – State park in Indiana, United States. One of the largest exposed … See more

The period is named after Devon, a county in southwestern England, where a controversial argument in the 1830s over the age and structure of the rocks found throughout the county was resolved by adding the Devonian Period to the geological timescale. See more

The Devonian world involved many continents and ocean basins of various sizes. The largest continent, Gondwana, was located entirely within the Southern Hemisphere See more

The Late Devonian extinction is not a single event, but rather is a series of pulsed extinctions at the Givetian-Frasnian boundary, the … See more