The Hadean is the oldest, it started at Earth's formation about 4.6 billion years ago (4,600 Ma), and ended roughly 3.8 billion years ago.
Incorrect grammar: old, older, and oldest are adjectives.Oldest is the superlative form, where one is the oldest of a group, or something (someone) is the oldest it has been (e.g. "In its oldest form, the automobile was a wagon.")
the krewe of momus is the oldest krewe
Yes, Amelia was the oldest child
what is the oldest type of architectural designs called
Which is the oldest era christian or Saka or Hijri or Vikrami?
triassic
The oldest geological era is the Precambrian period. It is the period of Earth's formation, as well as the origin of the first single and multi-celled organisms.
The Vikrama Era is the earlier/oldest of the two. The Vikrama Era began about 56 BC, whereas the Saka Era started about 78 AD, roughly 135 years after the Vikrama Era.Please see the related links below for more information.
The 4 eras are Cenozoic era, the mesozoic era, the paleozoic era, and the precambrian era.
The oldest named Era was the Eoarchean Era from 4 to 3.6 billion years ago. This was preceeded by the Hadean Eon (4,576.2 to 4,000 Ma) but this so far is not subdivided into eras.
Paleocene epoch
ploterozoic,and paleozoic
cenozoicmesozoicpaleozoicprecambrian
The Paleocene, which is the first (oldest) part of the Cenozoic Era, as the Cretaceous was the last of the Mesozoic Era.
The Archean era is the earliest Precambrian era, archean means "ancient" or "beginning". The Archean era starts with the oldest known rocks, about 4.6 billion years ago.
The Archean era is the earliest Precambrian era, archean means "ancient" or "beginning". The Archean era starts with the oldest known rocks, about 4.6 billion years ago.