supercontinent
https://gyazo.com/5af4e85599812550cc11251f642a80c5
source:
Supercontinent - Wikipedia
noun
each of several large
landmass
es (
notably
Pangaea
,
Gondwana
, and
Laurasia
) thought to have divided to form the present continents in the
geological
past.
地質学的な過去に分割されて現在の大陸になったと考えられる大きな大陸のこと
超大陸
#Geology