The Devonian was the geological period Earth was in four hundred million years ago.

Among the creatures living in this era was the genus Eryops, which was believed to be the last common ancestor between cold-blooded and warm-blooded animals. (VOY: "Distant Origin")

In late 2370, Benjamin Sisko, Jake, Quark, and Nog visited a planet in the Gamma Quadrant, which preliminary scans indicated to resemble Earth during the Devonian period, with abundant plant life, fish, some insects, but no predators or large animals. (DS9: "The Jem'Hadar")


Background informationEdit

The information given in "Distant Origin" is in contradiction with the current understanding that the Eryops was actually native to the Permian. Furthermore, the episode uses the term "Devonian era", although "era" is defined as a higher-order level, namely the Devonian period being the fourth of six periods in the Phanerozoic era.

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