Tizi n’Telgane: Lenian, Morocco
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Helicocystitidae
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Helicocystis moroccoensis n. gen., n. sp.
Smith and Zamora 2013
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| see common names | |||||||
Geography
| Country: | Morocco |
| Coordinates: | 31.3° North, 5.3° West (view map) |
| Paleocoordinates: | 61.8° South, 115.8° East |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Series 2 |
| 10 m.y. bin: | Cambrian 2-3 | ||
| Key time interval: | Lenian | Trilobite zone: | Cephalopyge notabilis–Ornamentaspis frequens |
| Age range of interval: | 515.6 - 510 m.y. ago |
Stratigraphy
| Formation: | Jbel Wawrmast | Member: | Tarhoucht | ||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Agdzian. (Cambrian stage 4–5 boundary) | |||||
Lithology and environment
| Primary lithology: | mudstone |
| Lithology description: The Formation commences with episodic hiatal shell accumulation layers capped with stromatolitic crusts and interbedded with mudstone—the Brèche à Micmacca Member—and passes upwards into the muddier Tarhoucht Member. | |
Taphonomy
| Modes of preservation: | body,cast |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | BMNH |
Metadata
| Database number: | 161459 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2014-09-05 17:10:30 | Last modified: | 2014-09-05 19:10:42 |
| Access level: | the public | Released: | 2014-09-05 17:10:30 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 52609. | 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) [P. Wagner/P. Wagner/M. Uhen] |