Inside the Universes

=

time_period, period, period, period, period, menstruation, period

~

No data.

≠

No data.

↑

geological_time, entity

↓

ice_age, carboniferous, devonian, permian, cretaceous, triassic, quaternary, silurian, jurassic, ordovician, cambrian, tertiary, pennsylvanian, mississippian

⨀

era

⦁

epoch

@

No data.

≫

No data.

⇅

No data.

geological_period

'geological_period'