|Time||299 million years ago - 251 million years ago|
|Anomalies|| Forest of Dean - Permian Hills Anomaly|
Permian - Future Anomaly
London Cycling Track - Early Permian Anomaly
West London Hospital Anomaly
Possibly McKinnon School Anomaly
University Campus Anomaly
|Appearances|| Episode 1.1|
|Part of||Palaeozoic era|
|Preceded by||Carboniferous period|
|Followed by||Triassic period|
The Permian was a period in Earth's history. It was ruled by reptiles, most of which the ancestors of mammals; these were called mammal-like reptiles. The weather was extreme with very, very cold winters and very, very hot summers. At the end of the Permian there was a mass extinction which wiped out 95% of life.
An Anomaly to the Permian opened up in the Forest of Dean in the late 1990s. A Gorgonopsid came through and attacked Helen Cutter, who escaped into the Permian through the Anomaly and started her travels through time.
The Anomaly was open eight years later (presumably having either reopened, or stayed open since the 1990s), and a Coelurosauravus came through and was named Rex. A Scutosaurus also came through, but was later scared back through the Anomaly by the Home Office team.
After obtaining legal permission from James Lester, Nick Cutter went through the Anomaly into a hill range in the Permian with Rex and Captain Tom Ryan. Ryan and Cutter found the remains of a camp their future selves had left on a second mission to the Permian in their near future, then returned through the weakening Anomaly. Rex returned through as well just before the Anomaly closed, and he and the Gorgonopsid were marooned in the Present. The latter creature was killed by Stephen Hart, and Rex was kept by Abby Maitland at her flat.
An Anomaly to the Future opened in the Permian and a family of Future Predators came through. The Forest of Dean Anomaly reopened, but linked to several years earlier in the Permian than it had the previous time it was open. Helen Cutter retreated through the Forest of Dean Anomaly to the Present from the Future Predators, and the Predators followed her.
After capturing the young of the Predator family, Nick, Helen, Captain Ryan and two other soldiers travelled with them into the Permian through the Forest of Dean Anomaly, to locate and contain the Future Anomaly. The mother Predator also followed them through in pursuit of her young, and killed Ryan and the two other soldiers. A Gorgonopsid then killed the mother Future Predator and all but two of the Predator young.
Nick and Helen subsequently buried Ryan and abandoned the camp, and thus the camp became the one Nick and Ryan discovered on their first mission into the Permian. Nick and Helen then returned through the Forest of Dean Anomaly, and while Nick decided to stay in the Present, Helen went back into the Permian to find the Future Anomaly on her own.
When Helen Cutter and Jenny Lewis travelled through the Anomalies to unite with Cutter in Siberia, the Permian was one of the time periods they visited. The team encountered and disturbed a group of Dimetrodon, and the creatures bit and badly infected one of the men before they went through an Anomaly into a Spaghetti Junction.
At some point in the new timeline, either Helen or Oliver Leek's mercenaries captured two Scutosaurus for Leek's creature army, possibly from the Forest of Dean Anomaly. The Scutosaurus presumably died when the creatures were locked in the Creature Prison's cage room and killed each other.
An Anomaly to the Permian opened in a West London Hospital and a group of Diictodon came through. Most of the Diictodon returned through, but two were marooned in the Present when the Anomaly closed before they could return through. They were subsequently taken in by Connor Temple and Abby Maitland, and named Sid and Nancy.
An Anomaly to the Permian opened up at a university campus, and a female Lycaenops came through before the Anomaly closed. Later, the Anomaly briefly reopened, and a male Lycaenops (apparently the mate of the female) came through before the Anomaly closed again. Both the male and female Lycaenops were shot and killed.
- This was the first time period other than the Present to appear in the Primeval franchise.