The Ettrain Formation is a geologic formation in Yukon. It preserves fossils dating back to the Carboniferous period.
The Ettrain Formation is a geologic formation in Yukon. It preserves fossils dating back to the Carboniferous period. Earth sciences portal Canada portal...
Formation Jurassic Dark Grey Siltstone Formation Cretaceous Ettrain Formation Carboniferous Fifteenmile Formation Cryogenian Goz Siltstone Formation Ediacaran...