Helicocystis
| Helicocystis Temporal range:
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|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Stem group: | Echinodermata |
| Family: | †Helicocystitidae |
| Genus: | †Helicocystis |
| Species: | †H. moroccoensis
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| Binomial name | |
| †Helicocystis moroccoensis Smith & Zamora, 2013[1]
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Helicocystis is a stalked, spiralling pentaradial echinoderm known from the Cambrian Jbel Wawrmast Formation.
References
[edit]- ^ Smith, A. B.; Zamora, S. (2013). "Cambrian spiral-plated echinoderms from Gondwana reveal the earliest pentaradial body plan". Proceedings of the Royal Society B: Biological Sciences. 280 (1765): 20131197. doi:10.1098/rspb.2013.1197. PMC 3712455. PMID 23804624.
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