Something truly and wonderfully special has been found in a 505-million-year-old Canadian fossil bed.
The find is incredible because soft tissues are so rarely preserved in the fossil record, and these are so beautifully immortalized that even anatomical details, like their little jelly tentacles, are visible.
And the newly discovered species,"Although jellyfish and their relatives are thought to be one of the earliest animal groups to have evolved, they have been remarkably hard to pin down in the Cambrian fossil record,""This discovery leaves no doubt they were swimming about at that time."Most of the fossil record we have consists of hard bony bits that are better able to survive the various fossilization processes.
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