It might be a grape size protist. Those were the days...
A single-celled ball about the size of a grape may provide an explanation for one of the mysteries of fossil history.Writing in Current Biology, researchers say the creature leaves tracks on the seabed which mirror fossilised tracks left up to 1.8 billion years ago.
Many palaeontologists believe only multi-celled organisms could have made these tracks.
This has been difficult to confirm as no multi-cellular fossils of such an age have ever been found.
But it is not a grape or even sloce. It is a protist of some sort. News story here, I've not yet seen the published paper (too busy count votes and stuff).
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