Christella dentata was originated like species in the Tertiary. Its maximum expansion took place when Europe enjoyed a warm and humid tropical climate ebullient forests. The later progressive cooling of the European climate went extinguishing to the Christella dentata of the north towards the south it forced and it to shut in the laurisilva forest of the province of Cadiz, resemblances to those of the Macaronesia, with a permanently humid subtropical climate.
The shrewdness of the Andalusian technicians bore its fruits and after two years, in September of year 2004, the longed for miracle took place. Tiny Christellas appeared between the maze of fungi, mosses, seaweed and other contained ferns arisen from the numerous ones and varied spores in the substrate. They were so small that they had to wait for seven months to that they grew to take samples of its fronds and to analyze them to confirm its identity.