At Devon (ütjspreegen: dewoon) as en eerdtidjääler tesken 416 an 359,2 miljuun juaren för üüs tidj. At Devon as det sjuardäälst süsteem uun't Paleozoikum. Diarföör lai det Silur, an diarefter fulagt det Karboon.
 Tekst üüb Öömrang |
| < Silur | D e v o n | Karboon > föör 416–359,2 miljuun juaren | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O2-uundial uun a atmosfeere (uun't madel) |
ca. 15 Vol.-% (71 % uun ferglik tu daalang) | ||||||||||||||||||||||||||||||
| CO2-uundial uun a atmosfeere (uun't madel) |
ca. 2200 ppm (5,5-sis so föl üs daalang) | ||||||||||||||||||||||||||||||
| Tempratuur üüb a grünj (uun't madel) |
ca. 20 °C (6 °C muar üs daalang) | ||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||
- Süsteem: Devon (416–359,2 mya)
- Seerie: Boowerdevon (385,3–359,2 mya)
- Kirew: Famennium (374,5–359,2 mya)
- Kirew: Frasnium (385,3–374,5 mya)
- Seerie: Madeldevon (397,5–385,3 mya)
- Kirew: Givetium (391,8–385,3 mya)
- Kirew: Eifelium (397,5–391,8 mya)
- Seerie: Onerdevon (416–397,5 mya)
- Kirew: Emsium (407–397,5 mya)
- Kirew: Pragium (411,2–407 mya)
- Kirew: Lochkovium (416–411,2 mya)
- Seerie: Boowerdevon (385,3–359,2 mya)
Kontinenten uun't Madeldevon
Fasker uun't Devon
Uun't Devon begand det waaksen faan auerweederplaanten
- Devon [ˈdevn] , graafskap uun Ingelun
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