era.
No, a geologic era is a longer unit of time than a geologic period. Geologic eras are divided into periods, which are further subdivided into epochs. The hierarchy from largest to smallest is era, period, epoch.
An era is a time period of indeterminate length, or, geologically speaking, a unit of time, smaller than aeons and greater than periods.
The smallest unit of geologic time is an age, followed by epoch, period, era, eon, and super eon.
Eon, Era, and Epoch: APEX :D
The units of geologic time, from shortest to longest, are as follows: epoch, period, era, and eon. An epoch is the smallest unit, representing a subdivision of a period, which is a division of an era. Eras are then grouped into eons, the largest units of geologic time that encompass significant spans of Earth's history.
Era
A period of time is commonly called an era.
Era
Era.
In geology, an era is a greater unit than an epoch. Elsewhere the two words are synonymous.
The sequence of geological time that represents increasing lengths of time is: epoch, period, era, and eon. An epoch is the smallest unit, followed by a period, then an era, and finally an eon, which encompasses the longest spans of geological time. Each successive category includes multiple subdivisions of the previous one, reflecting a broader timeframe.
On the geologic time scale, an era is longer than a period. There are 12 geologic eras in total and they are composed of geologic periods. For instance, the Mesozoic era is composed of the Triassic, Jurassic and Cretaceous periods.