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Usually, an era refers to a specific time period, normally associated with the dates of an important event, while a period is often used to refer to events that share a characteristic, but do not have exact dates.
The words are sometimes used interchangeably, and it isn't necessarily wrong to do so, since the usage is varied, but traditionally a period has been shorter than an era.
Riley Wolf
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Was era or period longer?
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.
What is smaller than both an era or a period?
An epoch is smaller than an era or a period.
Jurassic is the period of what era?
It really wasn't an era. An Era was a much longer period of time. It was called the "Jurassic Period".
What is smaller than an era or a period?
a week than a day
Which is longer era or period?
In geological time the Eon is larger than the Period. The Eon is the largest division of geological time recognised by the International Commission of Stratigraphic.The ICS have divided the time as such from largest to smallest.Super-Eon - (SuperEonothem) (Not recognised by the ICS but unofficially recognised e.g. Precambrian time)Eon - (Eonothem)Era - (Erathem)Period - (System)Subperiod - (SubSystem)Epoch - (Series)Age - (Stage)Chron - (Chronozone) (Not recognised by the ICS but is unofficially recognised usually based on reversal of earths magnetic field)
Which is larger an era or an epoch?
An epoch is longer than an era. An epoch can last for more than one lifetime.
What is. An era?
An era is a time period of indeterminate length, or, geologically speaking, a unit of time, smaller than aeons and greater than periods.
What is a time span shorter than an era such as quaternary?
A Period
What era is longer than all the rest of the eras combined?
Proterozoic
Is a epoch longer than an era?
In geological time a period is smaller than an era but larger than a Epoch.The International Commission of Stratigraphic have divided the time as such from largest to smallest.Super-Eon - (SuperEonothem) (Not recognised by the ICS but unofficially recognised e.g. Precambrian time)Eon - (Eonothem)Era - (Erathem)Period - (System)Subperiod - (SubSystem)Epoch - (Series)Age - (Stage)Chron - (Chronozone) (Not recognised by the ICS but is unofficially recognised usually based on reversal of earths magnetic field)
Why is your period longer than normal after you had usafe coitus 3 days before period?
All this means is that your period is longer than normal. The fact you had sex a few days before your period doesn't change your menstrual flow.
How long is a epoch?
How long is an epoch? Longer than an era but shorter than an age of course!
