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[–] 16 points 2 months ago (1 child)

It means our knowledge of their ancestry cuts off at that point. Anything else is speculation without additional information.

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  • [–] 14 points 2 months ago (1 child)

    That is exactly what the comic says but its not true, fossil records for ferns go back to the devonian several 100 million years before the Cretaceous

    https://www.ontariobeneathourfeet.com/dinosaur-salad-ancient-extant-ferns

    https://www.amerfernsoc.org/about-ferns

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