Paleozoic, Precambrian, Mesozoic or Cenozoic.
It is Precambrian
In the Paleozoic era. mesozoic era <== nova net by b.c
Mesozoic Era
Pangea (the single continent) was present in the late Paleozoic Era and early Mesozoic Era.
The one mass of land known as Pangaea was formed In the Era Paleozoic, along with mountains, and land breathing animals.
During the Paleozoic Era
The Precambrian Era is the longest era with the least amount of scientific information available. This is because so few fossils have been discovered.
precambian
precambrian........... has the least evidence and is when lady gaga started off as a man and decided to eat her way to present time!!!!
Precambrian
The Precambrian. Hope this helps! :)
Era
The earliest era of prehistory was also the longest. The Stone Age lasted from around 25,000 years to ago to about 5,500 years ago.
The Cenozoic, which began 65 million years ago, and includes the present times.
precambrian times
Precambrian Era.
I wouldn't normally answer a question like this because separating our common era out like this is ludicrous. This is clearly the "plastic" age/era. If you want a quaint little answer how about the "amount information available to the populous and degree of interconnection between interpersonal networks". Or "the information era is an extension of the global" or... you get the idea. I'm a clever so-and-so answer: The speed of information transfer both node to node and more importantly in distribution from the corporate and special interest group media.
The period of Earth's time that would be considered longest is the Precambrian Era.