Tanssikhte: Tremadocian, Morocco
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Phacopida
- Cheiruridae
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Anacheirurus adserai
(Vela and Corbacho 2007)
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| see common names | |||||||
Geography
| Country: | Morocco |
| Coordinates: | 30.4° North, 6.3° West (view map) |
| Paleocoordinates: | 77.6° South, 94.9° West (Wright 2013) |
| Basis of coordinate: | estimated from map |
| 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 |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified argillaceous mudstone |
| Secondary lithology: | lithified siltstone |
| Includes fossils? | Y |
| Lithology description: argillites with sandy mudstone and siltstone beds | |
| Environment: | open shallow subtidal |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 229964 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins | Research group: | marine invertebrate |
| Created: | 2023-04-19 13:43:29 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2023-04-19 13:43:29 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 82693. | F. Perez-Peris, L. Laibl, M. Vidal and A. Daley. 2021. Systematics, morphology, and appendages of an Early Ordovician pilekiine trilobite Anacheirurus from Fezouata Shale and the early diversification of Cheiruridae. Acta Palaeontologica Polonica 66:857-877 [P. Wagner/P. Wagner] |