1979-IV-A-4/2, Idri Fmn., Ash Shati area, N. flank of Murzuk Basin: Givetian, Libya
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Spiriferida
- Mucrospiriferidae
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Mucrospirifer cf. mucronatus
(Conrad 1841)
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Rhynchonellata
- Tropidoleptidae
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Tropidoleptus carinatus
(Conrad 1839)
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Rhynchonellata
- Rhynchonellida
- Leiorhynchidae
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Eumetabolotoechia perryi
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| see common names | |||||||
Geography
| Country: | Libya |
| Coordinates: | 27.5° North, 13.1° East (view map) |
| Paleocoordinates: | 50.5° South, 36.6° East |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Devonian | Epoch: | Middle Devonian |
| Stage: | Givetian | 10 m.y. bin: | Devonian 3 |
| Key time interval: | Givetian | ||
| Age range of interval: | 387.70000 - 382.70000 m.y. ago |
Stratigraphy
| Formation: | Idri | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Age range of formation is Givetian to early Frasnian (ref. 8780). However, the bulk is Givetian. | |||||
Lithology and environment
| Primary lithology: | sandstone |
| Secondary lithology: | silty claystone |
| Lithology description: Formation in general: "In the type area, the Fm. consists of fine-to-med.-gr sst. and of two layers with prevailing silty clayst (one of them at the bottom of unit). Towards the east, the silty-argillaceous layers wedge out and the sst become prevalently cross-bedded." | |
| Environment: | marine indet. |
| Geology comments: BA 3; fossils occur chaotically in sst; subtidal, rough water | |
Taphonomy
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 36192 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2004-01-16 09:41:27 | Last modified: | 2006-09-13 14:01:03 |
| Access level: | the public | Released: | 2004-01-16 09:41:27 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 8780. | V. Havlicek and P. Rohlich. 1987. Devonian and Carboniferous brachiopods from the northern flank of the Murzug Basin (Libya). Sbornik Geologickych Ved: Paleontologie 28:117-177 [A. Miller/J. Sessa/J. Sessa] |