| Helicocystis Temporal range: | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Stem group: | Echinodermata |
| Family: | †Helicocystitidae |
| Genus: | †Helicocystis |
| Species: | †H. moroccoensis |
| Binomial name | |
| †Helicocystis moroccoensis Smith & Zamora, 2013[1] | |
Helicocystis is a stalked, spiralling pentaradial echinoderm known from the Cambrian Jbel Wawrmast Formation.
References
- ↑ 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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