Selkirkia Fezouata locality, Draa valley: Tremadocian, Morocco
collected by Mohammed ‘Ou Said’ Ben Moula
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Pterobranchia
- Graptoloidea
- Phyllograptidae
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Tetragraptus sp.
Salter 1863
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Pterobranchia
- Graptoloidea
- Anisograptidae
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Selkirkiimorpha
- Selkirkiidae
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| see common names | |||||||
Geography
| Country: | Morocco | State/province: | Zagora |
| Coordinates: | 30.5° North, 5.8° West (view map) | ||
| Paleocoordinates: | 78.0° South, 94.7° West (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Early Ordovician |
| Stage: | Tremadocian | 10 m.y. bin: | Ordovician 1 |
| Key time interval: | Tremadocian | Graptolite zone: | Araneograptus murrayi |
| Age range of interval: | 486.85 - 477.1 m.y. ago |
Stratigraphy
| Formation: | Fezouata Shale | ||||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "Late Tremadocian" | |||||
Lithology and environment
| Primary lithology: | planar lamination,fine siltstone |
| Secondary lithology: | massive,lenticular,shelly/skeletal lithified sandstone |
| Includes fossils? | Y |
| Lithology description: Not listed in reference, but other Fezouata fossils come from thick, lenticular beds of massive bioclastic sandstones | |
| Environment: | coastal indet. |
| Geology comments: Text implies environment was "open marine conditions at variable depths (e.g. storm-wave base to deep marine)" | |
Taphonomy
| Modes of preservation: | body,soft parts,original calcite |
| Lagerst�tten type: | conservation |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | excellent |
Collection methods and comments
| Collection methods: | surface (in situ),mechanical |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | MCZ,YPM |
| Collectors: | Mohammed ‘Ou Said’ Ben Moula |
| Collection method comments: "The specimens are part of a larger collection produced by Mohammed ‘Ou Said’ Ben Moula from the Draa Valley in the Zagora region of Morocco, purchased in 2019" | |
Metadata
| Database number: | 235072 | ||
| Authorizer: | P. Novack-Gottshall | Enterer: | P. Novack-Gottshall |
| Modifier: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 2024-05-29 13:32:31 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2024-05-29 13:32:31 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 88524. | K. Nanglu and J. Ortega-Hernández. 2024. Post-Cambrian survival of the tubicolous scalidophoran Selkirkia. Biology Letters 20:20240042 [P. Novack-Gottshall/P. Novack-Gottshall] |