List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Cyrtodontida
- Slavidae
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Slava imperficieus
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Bivalvia
- Cyrtodontida
- Cardiolidae
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Cardiola interrupta
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Bivalvia
- Cardiida
- Glossidae
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"Isocardia" insocialis
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Pterobranchia
- Graptoloidea
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Monograptus ultimus
Perner 1899
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recombined as Neocolonograptus ultimus | |||||||
Pterobranchia
- Graptoloidea
- Monograptidae
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Monograptus cf. roemeri
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Monograptus colonus
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Monograptus nilssoni
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Monograptus fritschi
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Monograptus scanicus
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Monograptus sp.
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Monograptus leintwardiensis
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Pristiograptus sp.
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Legrand 1977 | ||||||
Monograptus bohemicus
(Barrande 1850)
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recombined as Bohemograptus bohemicus | |||||||
see common names |
Geography
Country: | Algeria |
Coordinates: | 29.8° North, 2.3° West (view map) |
Paleocoordinates: | 72.2° South, 37.7° East |
Basis of coordinate: | based on nearby landmark |
Geographic resolution: | local area |
Stratigraphy
Formation: | Oued Ali | ||||
Stratigraphic resolution: | member | ||||
Stratigraphy comments: Middle Member, several collecting levels whose graptolite faunas collectively suggest ages between Early Ludlow and Pridoli. |
Lithology and environment
Primary lithology: | "shale" | ||
Secondary lithology: | "limestone" | ||
Includes fossils? | Y | ||
Includes fossils? | Y | ||
Lithology description: Noted are graptolitic shales, gypsiferous shales, and limestone interbeds. | |||
Environment: | offshore | Tectonic setting: | cratonic basin |
Geology comments: Formation is between the Ougarta Group sandstones below and the Zeimlet Formation sandstones above.
SEP environmental call based on scanty given information and geological context provided by source ref (PDBD 7455). Note that this unit is mud dominated but contains fairly abundant limestone beds. |
Taphonomy
Collection methods and comments
Reason for describing collection: | biostratigraphic analysis |
Metadata
Database number: | 27209 | ||
Authorizer: | M. Foote | Enterer: | M. Foote |
Modifier: | S. Peters | Research group: | marine invertebrate |
Created: | 2002-11-22 09:57:49 | Last modified: | 2003-05-06 14:02:54 |
Access level: | the public | Released: | 2002-11-22 09:57:49 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
7455. | W. B. N. Berry and A. J. Boucot. 1973. Correlation of the African Silurian rocks. Geological Society of America Special Paper 147:1-83 [M. Foote/M. Foote/M. Foote] |
Secondary references:
7519 | P. Legrand. 1977. Les Chaines d'Ougarta au Sahara algerien. In A. Martinsson (ed.), The Silurian-Devonian boundary (IUGS, Series A, Number 5) 195-202 [M. Foote/M. Foote/P. Wagner] |