GO31--Goasquellou outcrops: Middle Givetian, France
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Murchisoniina
- Gosseletinidae
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Eoplatyzona ongaroae
Blodgett et al. 1999
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Angyomphalus (Eoangyomphalus) weyanti
Blodgett et al. 1999
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| see common names | |||||||
Geography
| Country: | France | State/province: | Brittany |
| Coordinates: | 48.3° North, 4.2° West (view map) | ||
| Paleocoordinates: | 26.1° South, 2.6° West (Wright 2013) | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | small collection |
Time
| Period: | Devonian | ||
| 10 m.y. bin: | Devonian 3-4 | *Epoch: | Middle Middle Devonian - Late/Upper Middle Devonian |
| *International age/stage: | Middle Givetian | ||
| Key time interval: | Middle Givetian | Conodont zone: | Polygnathus varcus |
| Age range of interval: | 385.9 - 383.7 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Kersadiou | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: GO31; Lower Polygnathus varcus | |||||
Lithology and environment
| Primary lithology: | concretionary,black,gray cherty/siliceous "shale" |
| Secondary lithology: | siltstone |
| Lithology description: 10-15 m thick siliciclastic unit composed of gray to dark gray (almost black), shale and siltstone including several layers with dark gray siliceous concretions | |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body,concretion |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection excludes: | some macrofossils,some microfossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:genus names updated through pers. comm. with P. Wagner (12/99); taxonomy as presented in the publication are given in the comments field | |
Metadata
| Database number: | 5919 | ||
| Authorizer: | A. Miller | Enterer: | K. Layou |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 1999-12-15 10:19:38 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 1999-12-15 10:19:38 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 374. | R. B. Blodgett, J. Fryda, and P. R. Racheboeuf. 1999. Upper Middle Devonian (Givetian) gastropods from the Kersadiou Formation, Brittany, France. Journal of Paleontology 73(6):1081-1100 [A. Miller/K. Layou/P. Wagner] |