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Mackenzia Portalia Redoubtia

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Description

Various Burgess Shale creatures of Middle Cambrian British Columbia.

The large, shaggy-looking beast is Portalia mira, what may be a holothurian (sea cucumber). The ribbed sausage-like thing P. mira is around is the actinian anthozoan cnidarian Mackenzia costalis.

At the bottom is another possible holothurian, Redoubtia polypodia. Some experts have suggested it may actually be a uniramian arthropod.
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Comments9
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Charanty's avatar
They are awesome!

PS

Were there any kind of nudibranch  (sea slug) analogues?