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What else can I help you with?
Was there an ozone layer in the permian period?
During the Permian period, which lasted from about 299 to 251 million years ago, there was an ozone layer forming in Earth's stratosphere. This layer started to develop during the Proterozoic eon, approximately 500 million years ago, and continued to evolve through the Paleozoic era, which includes the Permian period.
How many years did a human live 500 years ago?
If They Lived 500 years ago It WAS 500 years ago
When did the Quaternary Period begin and end?
We are in the Quaternary period now (Holocene Epoch). So it hasn't ended yet.
Is of the major animal body plans seen today appeared in the fossil record over 500 million years ago at the beginning of what period?
The major animal body plans seen today appeared in the fossil record over 500 million years ago at the beginning of the Cambrian Period. This period is known as the Cambrian Explosion, during which a wide variety of animal forms emerged and diversified rapidly.
How did the Permian period start what happened before it?
The Permian started 290 Mya (million years ago). Before it was the Carboniferous.
About 500 years ago the world's population started?
There are people that believe that the world's population started about 500 years ago. There are also people that believe, that according to the Bible, the world's population started over 2000 years ago with Adam and Eve.
About 500 years ago the world's population started to do what?
The population started to increase rapidly
When did Ordovician period started?
490 million years ago.
What time period did triassic period exist?
The Triassic period started 252.2 million years ago and ended 201.3 million years ago. It was the first period of the Mesozoic era.
How long ago was the Carboniferous period?
The Carboniferous is considered to have started 354 million years ago and ended 290 million years ago.
How old is Old Testament?
The writing of the old testament started 3 500 years ago.
Were and when did sikhisam begin?
sikhisam started about 300 to 500 years ago when the first guru was born
Summary of the story of cricket from history?
The game of cricket started in England almost 500 years ago.
Did snails live in the Renaissance era?
The earliest snails appeared during the Cambrian, nearly 500 million years ago. The Renaissance was a period where art and learning flourished right after the Middle Ages. It started in the 1300's, only 700 years ago. In a word, yes.
Which period came first the Ordovician or the Carboniferous?
The Ordovician period came first. It started 485.4 million years ago and finished 443.8 million years ago. Then came the Silurian and Devonian periods, followed at 358.9 million years ago by the Carboniferous.
When did the quatenary period begin and end?
It started 1.6 million years ago and is still going on.
How long ago was the miocene time period?
5 to 25 Million Years ago
