Defoniyaan (Af-Ingiriisi: Devonian), oo ah afraad ee lixdii xilli ee Balyuuzoyik Era iyo xilli koror, ayaa ka fidsan 419.2 ± 3.2 ilaa 358.9 ± 0.4 milyan sano ka hor, muddo ku dhow 60.3 milyan sano. Waxaa ka horreeya siluriyaan, waxaa ku xiga Kaarboon.

Defoniyaan

Akhriska sii wad

wax ka badal