Unit VII - Volga River composite section (Barremian): Barremian, Russian Federation
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda
- Belemnitida
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Praeoxyteuthis hibolitiformis
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Praeoxyteuthis jasikofiana
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Praeoxyteuthis sp.
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Bivalvia
- Pectinida
- Pectinidae
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Mclearnia imperialis
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see common names |
Geography
Country: | Russian Federation |
Coordinates: | 54.2° North, 48.4° East (view map) |
Paleocoordinates: | 47.3° North, 50.6° East |
Basis of coordinate: | stated in text |
Geographic resolution: | local area |
Time
Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
Stage: | Barremian | 10 m.y. bin: | Cretaceous 2 |
Key time interval: | Barremian | ||
Age range of interval: | 129.40000 - 125.00000 m.y. ago |
Stratigraphy
Local bed: | 44 m | ||||
Local order: | bottom to top | ||||
Regional section: | Volga River | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: No lithostratigraphic data reported. Collection from 5-12 m thick claystone, between 39 and 48 m above the base of the composite collection. This unit is witin the Early Barremian part of the succession. |
Lithology and environment
Primary lithology: | bioturbation,fine,glauconitic,green lithified sandstone |
Secondary lithology: | black lithified silty claystone |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: Rhythmic alteration of bioturbated greenish fine glauconite-quartz sandstones with SG surfaces at the base and black silty claystones. | |
Environment: | marine indet. |
Geology comments: No paleoenvironmental data reported. |
Taphonomy
Modes of preservation: | body,cast,mold/impression,recrystallized,replaced with silica |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | poor |
Collection methods and comments
Collection methods: | selective quarrying,surface (float),surface (in situ),field collection |
Reason for describing collection: | biostratigraphic analysis |
Collection method comments: Figured material is deposited in the Museum of the Earth of the Moscow State University, Russia (MSU); some material is also reposited in the Dept of Geology and Paleontology at the University of Hannover, Germany (SGPI). | |
Taxonomic list comments:Modern nomenclatural usage. Includes all faunal group. |
Metadata
Database number: | 57133 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
Created: | 2005-12-03 20:16:35 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2005-12-03 20:16:35 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
15436. | E. J. Baraboshkin and J. Mutterlose. 2004. Correlation of the Barremian belemnite successions of northwest Europe and the Ulyanovsk Saratov area (Russian Platform). Acta Geologica Polonica 54(4):499-510 [A. Miller/A. Hendy/A. Hendy] |