Core Nl3 -2734.2, Graptolites, Upper Silurian, Laghouat, Algeria: Ludlow, Algeria
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Pterobranchia
- Graptoloidea
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Monograptus ultimus
Perner 1899
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| recombined as Neocolonograptus ultimus | ||||||||||
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Pterobranchia
- Graptoloidea
- Monograptidae
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Monograptus bohemicus
(Barrande 1850)
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| recombined as Bohemograptus bohemicus | ||||||||||
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Monograptus chimaera
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Monograptus formosus
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Monograptus aequabilis
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| Monograptus aequabilis nov. var. | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Algeria |
| Coordinates: | 33.3° North, 3.2° East (view map) |
| Paleocoordinates: | 69.9° South, 53.5° East |
| Basis of coordinate: | stated in text |
| Geographic resolution: | hand sample |
Time
| Period: | Silurian | Epoch: | Ludlow |
| 10 m.y. bin: | Silurian 2 | ||
| Key time interval: | Ludlow | ||
| Age range of interval: | 427.40000 - 423.00000 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: sampled from the core in sediments from 2734.2m below the surface.
Lower Middle Ludlow. | |||||
Lithology and environment
| Primary lithology: | pyritic,black lithified argillaceous siltstone |
| Includes fossils? | Y |
| Environment: | offshore |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | excellent |
| Articulated whole bodies: | some |
| Associated major elements: | many |
Collection methods and comments
| Collection methods: | core,chemical,mechanical,field collection |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 56787 | ||
| Authorizer: | L. Villier | Enterer: | L. Villier |
| Modifier: | L. Villier | Research group: | marine invertebrate |
| Created: | 2005-11-24 09:34:52 | Last modified: | 2005-11-24 12:11:02 |
| Access level: | the public | Released: | 2005-11-24 09:34:52 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 15303. | 1% 19580 | S. Willefert. 1962. Quelques graptolites du Silurien supérieur du Sahara septentrional. Bulletin de la Société Géologique de France 4(1):24-40 [L. Villier/L. Villier] |