> 10-13 μm per pixel is nowhere near good enough when a typical bacterium is 0.5 - 5.0 μm in size!

https://en.wikipedia.org/wiki/Thrombolite

https://en.wikipedia.org/wiki/Stromatolite

https://en.wikipedia.org/wiki/Spongiostromata

https://en.wikipedia.org/wiki/Oncolite

You're nitpicking. They said "typical"; they did not say "all".

Technically, a one-foot diameter dog's vomit slime mold is a single cell.