Earth may have had a ring system 466 million years ago (www.monash.edu)
from fossilesque@mander.xyz to astronomy@mander.xyz on 16 Sep 2024 19:47
https://mander.xyz/post/18149783

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Taniwha420@lemmy.world on 17 Sep 2024 02:14 collapse

Mollusks and arthropods ruled the oceans at this time. The first land plants appeared on land.