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Helicocystis ✝
| Description | Helicocystis is a stalked, spiralling pentaradial echinoderm known from the Cambrian Jbel Wawrmast Formation. From Wikipedia article at https://en.wikipedia.org/wiki/Helicocystis, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||||||||||||||||||||||||||||
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| Source Data |
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| Rank | genus | |||||||||||||||||||||||||||||||||
| Taxonomy (GBIF,PBDB) | Life : Animalia : Echinodermata : Helicocystitidae : Helicocystis | |||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Helicocystis Smith & Zamora, 2013 | |||||||||||||||||||||||||||||||||
| Name Published In | Smith, Andrew B. & Samuel Zamora. 2013. Cambrian spiral-plated echinoderms from Gondwana reveal the earliest pentaradial body plan. Proceedings of the Royal Society, B: Biological Sciences 280(1765): 20131197. | |||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 2 | |||||||||||||||||||||||||||||||||
| First Recorded Appearance | 516 - 513 Ma Cambrian | |||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 516 - 513 Ma Cambrian | |||||||||||||||||||||||||||||||||
| Environment | marine (based on Echinodermata) | |||||||||||||||||||||||||||||||||
| Reproduction | dispersal=water,planktonic (based on Echinodermata) | |||||||||||||||||||||||||||||||||
| Ontogeny | accretion,addition of parts (based on Echinodermata) | |||||||||||||||||||||||||||||||||
| Taphonomy | high Mg calcite (based on Echinodermata) | |||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | A. B. Smith and S. Zamora. 2013. Cambrian spiral-plated echinoderms from Gondwana reveal the earliest pentaradial body plan. Proceedings of the Royal Society B: Biological Sciences 280(1765) | |||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Helicocystis |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Helicocystis moroccoensis ✝ species | listed (PBDB) | 3 | 516 Ma Cambrian | 516 Ma Cambrian |
Synonymy List
| Year | Name and Author |
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| 2013 | Helicocystis Smith and Zamora p. 6 |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
