Ice Age
Geological / environmental event
2580000BFA
8000FA
A period of global cooling coincides with the first anatomically modern Frithitt.
Unknown volcanic or meteoric events lead to a period of global cooling, or "ice age". Several dinosaur groups such as ceratopsians, as well as many pterosaurs, go extinct at the beginning of this epoch, coinciding with the appearance of the first anatomically modern Frithitt. Some speculate that the dwindling of these groups permitted Frithitt to spread across the planet and become more complex.