Favorite Ancient/Prehistoric Organism Thread

I am surprise that a thread with this name does not exist yet, considering people bring up ancient/prehistoric organisms all the time. This includes ancient organisms from all clades/Kingdoms of Life.

You already know one of my favorite ancient organisms [1], so I will go with another favorite organism - Stromatolites! Without them, we would not have oxygen in the atmosphere, and they still exist in some places after billions of years!


By Paul Harrison - Photograph taken by Paul Harrison (Reading, UK) using a Sony CyberShot DSC-H1 digital camera., CC BY-SA 3.0, File:Stromatolites in Sharkbay.jpg - Wikimedia Commons


  1. just look at my profile and name tags ↩︎

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Weren’t stromatolytes the structures made by cyanobacteria? Like how we have fossil footprints?

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Stromatolytes are made of three layers of bacteria. Cyanobacteria make up the top layer, while facultative aerobes make up the buffer brown layer that shield the anaerobic purple sulfur bacteria below. The by-product at the bottom of the mat, for stromatolites, is basically rock, which is why these structures exist. At least, this is what I remember about them.

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Yeah. So as said, they aren’t the fossils of cyanobacteria themselves, mote like foorprints of theirs.

Have you heard of the francevillean biota?

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Yup. Although, scientists aren’t sure if it is actual life, or simple due to abiotic, geological processes.

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Maybe they could’ve originated from both?

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Your guess is as good as theirs.

Through the conditions where the biota ended do line up with a possibly life-thwarting event (pretty sure a major glaciation event and/or oxygen level drop).

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One of the cutest is Latouchella. I kinda want to have it as a little pet!

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Unfortunately I don’t think it will be getting sold anytime soon…

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Scientists should get on that now!

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Reviving that species might not be possible…

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Yeah, joke statement.

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The oldest revivable animals would probably be the ones whose remains lie deep under the ice shell of antarctica…

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So basically extinct penguins.

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Well, some other things could also still have their DNA waiting down there…

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Like tha marsupials that used the continent as a landbridge to get to Australia?

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Maybe? We don’t have all that great of an idea what could lie under the ice…

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Yeah, who knows what can be down there…

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If the warming doesn’t stop, in all the misery we might just find out…

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