Zorn (ZO3): Givetian, France
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Phacopida
- Acastidae
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Heliopyge camfroutensis
Morzadec 1983
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| recombined as Alcaldops camfroutensis | |||||||
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Heliopyge renaudae
Morzadec 1983
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| recombined as Alcaldops renaudae | |||||||
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Trilobita
- Phacopida
- Phacopidae
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Phacops sp.
Emmrich 1839
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Trilobita
- Proetida
- Proetidae
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Proetus (Gerastos) aff. tenuimargo
(Richter 1909)
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| recombined as Longiproetus tenuimargo | |||||||
| see common names | |||||||
Geography
| Country: | France | State/province: | Alsace |
| Coordinates: | 48.3° North, 4.5° West (view map) | ||
| Paleocoordinates: | 31.4° South, 21.1° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | local area |
Time
| Period: | Devonian | Epoch: | Middle Devonian |
| Stage: | Givetian | 10 m.y. bin: | Devonian 3 |
| Key time interval: | Givetian | Conodont zone: | lower Polygnathus varcus |
| Age range of interval: | 387.70000 - 382.70000 m.y. ago |
Stratigraphy
| Formation: | Kersadiou | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: PJW: Originally given as Eifelian; however, Botquelen & Racheboeuf 2008 put Kersadiou in the lower Polygnathus varcus zone. They also indicate that the specific that generated the list is Kersadiou, so this is not a case where they go to Eifelian-aged rocks from this region (i.e., the underlying Quelern Formation). Kersadiou overlies the Quelern and underlies the Tibidy. | |||||
Lithology and environment
| Primary lithology: | cherty/siliceous "shale" |
| Lithology description: Lithotypes from diagrammatic section: "schistes a nodules siliceux" | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:Trilobites only. | |
Metadata
| Also known as: | Kersadiou Formation trilobites, Rade de Brest, Massif Armoricain | ||
| Database number: | 40072 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2004-06-16 13:21:53 | Last modified: | 2019-06-18 20:17:05 |
| Access level: | the public | Released: | 2004-06-16 13:21:53 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 10864. | P. Morzadec. 1983. Trilobites du Devonien (Emsien-Famennien) de la Rade de Brest (Massif Armoricain). Palaeontographica Abteilung A 181(4-6):103-184 [M. Foote/M. Foote/M. Foote] |