Tthe early Pliocene had a weakened atmospheric circulation, and therefore, reduced vertical wind shear, which is favorable for tropical cyclone growth.
上新世早期的大气环流被减弱，因此垂直风切变减小，助长了热带气旋的发展。
The Blancan extends back into the Pliocene.
勃朗阶延伸回上新世。
The first recognisable ancestors of modern humans evolved during the Pliocene epoch.
