there is bacteria... that's abot it.
Some interesting things about the Precambrian time period include:
The Precambrian period was from 4600 million years ago to about 542 million years ago.
The Precambrian Era. The name means: "before the Cambrian period." This old, but still common term was originally used to refer to the whole period of earth's history before the formation of the oldest rocks with recognizable fossils in them. In the last few decades, however, geologists have found that there are some hard-to-discern fossils in some Precambrian rocks, so this period is now also known as the Cryptozoic or "obscure life" Eon (from the words "crypt" = "hidden," and "zoon" = "life"). The Precambrian covers almost 90% of the entire history of the Earth. It has been divided into three eras: the Hadean, the Archean and the Proterozoic. Source: Unknown The Precambrian Era comprises all of geologic time prior to 600 million years ago. The Precambrian was originally defined as the era that predated the emergence of life in the Cambrian Period. It is now known, however, that life on Earth began by the early Archean and that fossilized organisms became more and more abundant throughout Precambrian time. The two major subdivisions of the last part of the Precambrian are the Archean (oldest) and the Proterozoic. Rocks younger than 600 Ma are considered part of the Phanerozoic.
Precambrian
The 1870's and 80's because of all the interesting things that happened in history during that era, (in Canada leastways) and the way of life seems very efficient.
A historical period, or era as it's sometimes called, is a period of time that is readily identifiable by particular things, events and or persons that happened or existed during that time.
It was the Precambrian time period.
The Precambrian time period is segmented into very few parts because:
The Precambrian time period is the longest time period of Earth's history.Looks like we have the same worksheet in school :)
The Precambrian time period is segmented into very few parts because the fossil record is scarce.
Precambrian is a geologic period that extends as back as 4.500 million years ago. Fossils are very rare from that period of time.
The Precambrian period was from 4600 million years ago to about 542 million years ago.
The Precambrian Time
Precambrian time
The Precambrian Era began in the time period 4600 and ended in 570.
The period of Earth's time that would be considered longest is the Precambrian Era.
The Precambrian time
Precambrian time - The period in the geologic time scale from the formation of the Earth to the beginning of the Palezonoic era, from about 4.6 billion to 543 million years ago.