Djebel Mech Irdane. Banc 127: Early/Lower Givetian, Morocco
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Proetida
- Proetidae
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Orbitoproetus (Helmutia) rissanensis n. sp.
Feist and Orth 2000
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| recombined as Helmutia rissanensis | |||||||
| see common names | |||||||
Geography
| Country: | Morocco |
| Coordinates: | 31.3° North, 4.3° West (view map) |
| Paleocoordinates: | 45.4° South, 17.4° East |
Time
| Period: | Devonian | Epoch: | Middle Devonian |
| Stage: | Givetian | 10 m.y. bin: | Devonian 3 |
| Key time interval: | Early/Lower Givetian | Conodont zone: | Polygnathus hemiansatus |
| Age range of interval: | 387.70000 - 385.90000 m.y. ago |
Stratigraphy
| Formation: | Bou Tchrafine |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | shelly/skeletal calcareous "limestone" |
| Lithology description: calcaire marneux à styliolines (marly limestone with styliolines). | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 234950 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2024-05-23 23:09:02 | Last modified: | 2024-05-23 23:09:02 |
| Access level: | the public | Released: | 2024-05-23 23:09:02 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 71742. | R. Feist and B. Orth. 2000. Trilobites de la limite Eifélien/Givétien de la région stratotypique (Tafilalet, Maider, Maroc). Proceedings of the Subcommission on Devonian Stratigraphy (SDS)–IGCP 421 Morocco Meeting 20:78-91 [P. Wagner/P. Wagner/P. Wagner] |