They might have survived, even if the climate was not perfectly fitted for them, for the change of temperature must have been very slow, and plants undoubtedly possess a certain capacity for acclimatisation, as shown by their transmitting to their offspring different constitutional powers of resisting heat and cold.
Klima, berentzat egoki-egokia ez izanik ere biziraunen zuten, tenperatura-aldaketak oso astiro gauzatu behar izan zuelako eta landareek, dudarik gabe, klimaratzeko aparteko ahalmen bat dutelako, beren ondorengotzari osaeran transmititzen dioten bero zein hotzari eusteko indar diferenteak erakusten duten moduan.