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Cambrian ruleiod (lemmy.world)

submitted 4 months ago by [email protected] to c/[email protected]

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[–] [email protected] 23 points 4 months ago (1 children)

Those are trilobites, part of the arthropod phylum. They have exoskeletons (i.e no inner bones), so they would probably look quite a lot like their fossils. Comparing them to vertebrates like humans (or dinosaurs, or whatever) in this context makes no sense.

[–] [email protected] 2 points 4 months ago (1 children)

And an exoskeleton can't have anything covering it because... ?

[–] [email protected] 17 points 4 months ago

Because that's what the "exo" part means.