1979-IV-D-12, Idri Fmn., Ash Shati area, N. flank of Murzuk Basin: Givetian, Libya
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata
- Tropidoleptidae
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Tropidoleptus carinatus
(Conrad 1839)
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Mergl and Massa 1992 | |||||||||
Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Cupularostrum idriense
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Mergl and Massa 1992 | |||||||||
Rhynchonellata
- Rhynchonellida
- Leiorhynchidae
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Eumetabolotoechia perryi
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Mergl and Massa 1992 | |||||||||
Gastropoda
- Archaeogastropoda
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Archaeogastropoda indet.
Thiele 1925
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Mergl and Massa 1992 | |||||||||
Archaeogastropoda indet.
Thiele 1925
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Mergl and Massa 1992 | |||||||||
Archaeogastropoda indet.
Thiele 1925
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Mergl and Massa 1992 | |||||||||
"mourloniid" | ||||||||||
Gastropoda
- Bellerophontida
- Bellerophontidae
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Bellerophontidae indet.
M'Coy 1851
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Mergl and Massa 1992 | |||||||||
see common names |
Geography
Country: | Libya |
Coordinates: | 27.4° North, 13.1° East (view map) |
Paleocoordinates: | 50.6° 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." This coll.: fine-gr. sst [ref. 9606]. | |
Environment: | marine indet. |
Geology comments: BA 2 |
Taphonomy
Collection methods and comments
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 36186 | ||
Authorizer: | M. Foote | Enterer: | M. Foote |
Modifier: | M. Foote | Research group: | marine invertebrate |
Created: | 2004-01-16 09:16:27 | Last modified: | 2006-09-13 14:01:03 |
Access level: | the public | Released: | 2004-01-16 09:16:27 |
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] |
Secondary references:
9606 | M. Mergl and D. Massa. 1992. Devonian and Lower Carboniferous brachiopods and bivalves from western Libya. Biostratigraphie du Paleozoique 12:1-115 [M. Foote/M. Foote/M. Foote] |