As we enter the Proterozoic Eon, a period from 2,500 million years ago to 542 million years, we find that more information has been found out and thus this large time frame can be split up into smaller sections. Thus this eon, a primary division of geologic time lasting over 500 million years and there have only been four named. You better check up on these, there may be a quiz for the Christmas edition of the blog.
An eon is then split up into Eras (a division of geological time that last several hundred million years), Periods (a period of geological time lasting tens of millions of years and longer than an epoch), Epochs (a division of geological time lasting tens of millions of years and shorter than a period) and Ages (a unit of geological time shorter than an epoch a few million years).
So the Proterozoic Eon is then split into three eras – the Palaeoproterozoic Era (2,500 to 1,600 million years ago), the Mesoproterozoic Era (1,600 to 1,000 million years ago) and the Neoproterozoic Era (1,000 to 542 million years ago).
Thus the next posting on the blog will be describing what happened in the first period, the Siderian Period, of the Proterozoic Era (2,500 to 2,300 million years ago). I hope I haven’t lost you, but I had to describe these section descriptions so that we can get through to the details that so made the planet a suitable place for both Whatlington and Vinehall Street. Should I also include Woods Green that is nestled between the formerly mentioned and the latterly mentioned villages? I await your thoughts.
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