Paleocene
because when it rains in january and spring comes new leaves start to sprout.
This division was established in 1962.
1519
Plants germinate
Watermelon, wheat and watercress are plants that start with W.
2010
They start by a seed
There were no animals or plants at the start of the earth. Cyanobacteria maybe
The chromosomes.
All I know is that horomones are what start the division.
Metasequoia.
It depends on who your starter Pokemon is. If you start of with bulbasaur, entei will appear, if you start with squirtle, Raikou will appear, and if you start of will charmander, suicune will appear. Those 3 Pokemon could anywhere in the game, so you will have to find that Pokemon yourself.