Saddexaad (Af-Ingiriisi: Triassic), oo ah kan ugu horreeya uguna gaaban saddexda da'da ee Mesozoik iyo xilli koror, oo ka soo jeeda 251.902 ± 0.024 ilaa 201.3 ± 0.2 milyan sano ka hor, muddo ku dhow 50,602 milyan sano. Waxaa ka horreeya Barmiyaan, waxaana ku xiga Juuraasiik. Bilawgeeda iyo dhammaadkeeda waxa lagu asteeyay dhacdooyin waaweyn oo dabargo’ ah.

Tixraac wax ka badal