Eyona mithi yokuqala imithi yefen, umsila wamahashe kunye nelycophytes, ekhula emahlathini ngexesha le-Carboniferous; iifeni ezintathu zisekho, kodwa imithi yemisila yehashe kunye nowelycophytes yiyo kuphela esekhona nayo akasuki kuluhlu lwemithi yefeni. Emva koko, kwixesha leTriassic, iconifers, iginkgos, icycads kunye nezinye iigymnosperm ezibonakala zinwenwa, kunjalo nje zilandela izityalo eziziintyatyambo kwixesha leCretaceous. uninzi lwemithi namhlanje luzizityalo ezineetyatyambo (iiAngiosperms) kunye neconifers.