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Selkirkia
Extinct genus of priapulid worms / From Wikipedia, the free encyclopedia
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For the plant genus, see Selkirkia (plant).
Selkirkia is a genus of predatory,[3] tubicolous priapulid worms known from the Middle Cambrian Burgess Shale, Ogygopsis Shale, Puncoviscana Formation[4] and the Early Ordovician Fezouata Formation.[5] 142 specimens of Selkirkia are known from the Greater Phyllopod bed, where they comprise 0.27% of the community.[6] In the Burgess Shale, 20% of the tapering, organic-walled tubes are preserved with the worm inside them, whereas the other 80% are empty (or sometimes occupied by one or more small agnostid trilobites).[3] Whilst alive, the tubes were probably vertical, whereas trilobite-occupied tubes are horizontal.[3]
Quick Facts Scientific classification, Species ...
Selkirkia | |
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Selkirkia columbia fossil from the Burgess Shale. From Smith et al. (2015)[1] | |
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Restoration of Selkirkia columbia | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Stem group: | Priapulida (?) |
Class: | †Archaeopriapulida |
Family: | †Selkirkiidae Conway Morris, 1977[2] |
Genus: | †Selkirkia Walcott, 1911 |
Species | |
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