0
The Paleoproterzoic Era (2,500 - 1,600 ma) was the longest era in geological time. It lasted 900 million years. This represents 19.8% of geological time.
List from longest to shortest.
Paleoproterzoic (2,500 - 1,600 ma) - 900 million years
Mesoproterzoic (1,600 - 1,000 ma) - 600 million years
Neoproterzoic (1,000 - 542 ma) - 458 million years
Paleoarchean (3,600 - 3,200 ma) - 400 million years
Meseoarchean (3,200 - 2,800 ma) - 400 million years
Neoarcheasn (2,800 - 2,500 ma) - 300 million years
Paleozoic (542 - 251 ma) - 291 million years
Eoarchean (3,800 - 3,600 ma) - 200 million years
Mesozoic (251 - 65.5 ma) 185 million years
Cenozoic (65.5 ma - Now) 65.5 million years
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What geological time period did human life occur in?
During the last geological time period, the Cenozoic era the dinosaurs became extinct. As the smaller mammals we able to survive the humans evolved.
What is proterozoic?
The Proterozoic is a geological eon representing the time just before the proliferation of complex life on Earth. Most life forms at the time were single celled organisms.
What are the three major strengths of darwins work?
evidence in real time - finches fossil evidence evidence now backed up by genetics geological evidence of strata not just fossils
What do periods on the geologic time scale represent?
An era, in geologic terms, is a geological time period encompassing two or more geologic periods.
How does paleomagnetism provide support for the idea of sea floor spreading?
Rocks that are found at on the sea floor of the Earth differ in magnetizations. Using paleomagnetism, these rocks were known to have preserved an imprint of the changes in the earths magnetism over long periods of geological time, which proved the theory of sea floor spreading.
Horsetails and similar plants are thought to have constituted a large proportion of the vegetation during which geological time period?
363 million years ago.
What is geological scale?
The geological time scale organizes a long period of time.
How does the geological time influence the theory of evolution?
Geological " deep " time gives ample time for evolutionary processes to occur.
What does the geological timescale encompass?
IT encompasses all of the geological time period that have happened since the begin of time
Which geological process occurs in the shortest amount of time?
Earthquake is one of the geological process that occurs the shortest amount of time.
How can a geological time scale BEST be reconstructed?
A geological time scale can best be reconstructed using a wide variety of reference books and materials that lay out the chronological order of the geological scale.
Is 100 years long in geological time?
For most geological processes, 100 years is a very short time, so to answer your question, no.
What has the author James Croll written?
James Croll has written: 'Climate and time in their geological relations' -- subject(s): Geological time, Glacial epoch, Climatology, Ocean currents 'Stellar evolution and its relations to geological time' -- subject(s): Cosmogony
What is time in geology?
Geological time starts at the Big bang. For example, if a scientist says that a 1000years is not a long time in "geological time" they simply mean on a timescale a thousand years in nothing
In geological time eras divide into?
periods
What is the largest divisions of geological time?
The Precambrian.
Which unit of geological time is the least?
It is an epoch.
