Barmiyaan

Barmiyaan (Af-Ingiriisi: Permian), lixaad ee lixdii xilli ee Baleyosoyig Era iyo xilli koror, ayaa laga kordhiyay 298.9 ± 0.15 ilaa 251.902 ± 0.024 milyan sano ka hor, muddo ku saabsan 46.998 milyan sano.  Waxaa ka horreeya kaarboon, oo ay ku xigaan seddexda.

Tixraac