Kurchavinskaya Fm - Sample 99/45, Kruzhilikha River: Iverian, Russian Federation
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Strophomenata
- Billingsellida
- Billingsellidae
|
|||||||
|
Billingsella sp.
Hall and Clarke 1892
|
|||||||
| see common names | |||||||
Geography
| Country: | Russian Federation |
| Coordinates: | 79.2° North, 97.3° East (view map) |
| Paleocoordinates: | 22.7° South, 1.7° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Furongian |
| Stage: | Jiangshanian | 10 m.y. bin: | Cambrian 5 |
| Key time interval: | Iverian | ||
| Age range of interval: | 494 - 489.5 m.y. ago |
Stratigraphy
| Formation: | Kurchavinskaya | ||||
| Local section: | Kruzhilikha River | ||||
| Regional section: | October Revolution Island | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: Cambrian Kurchavinskaya Fm is overlain unconformably by the Kruzhilikha Fm. Stratigraphy is described in more detail by Makarev et al. (1981) and Bogolepova et al. (2001). THICKNESS: 100 m to 250 m in thickness locally. AGE: Iverian. Correlated to the Protopeltura praecursor Biozone of the standard Baltic sequence. The upper part of the Kurchavinskaya Formation has been previously corelated with the upper half of the upper Cambrian, equivalent to most of the Iverian and the Payntonian stages of the Australian succession. The present series of collections contain taxa (e.g. P. holtedahli) that indicate correlation with the Ketyi horizon, and hence correlation into late Iverian of Australia. | |||||
Lithology and environment
| Primary lithology: | lithified argillaceous sandstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Dark colored argillaceous sandstones. LITHIFICATION: Lithified, based on age and observation of figured specimens. | |
| Environment: | coastal indet. |
| Geology comments: ENVIRONMENT: No environmental data reported. From siliclastic environment, but of unknown bathymetry. Assigned here to a siliciclastic - coastal indet. environment. TECTONIC SETTING: No tectonic data reported. SEQUENCE STRATIGRAPHY: No sequence stratigraphic data reported. | |
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | medium |
Collection methods and comments
| Collection methods: | surface (float),field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: COLLECTORS: Collected by D.G. Gee and V.L. Pease, during Swedarctic International Expedition of 1999. REPOSITORY: PMU (Museum of Evolution, Uppsala University, Sweden). SOURCE OF MATERIAL: Colleced from scree blocks. | |
| Taxonomic list comments:COMPLETENESS: Exhaustive, depauperate fauna, but including representatives of trilobita, brachiopoda, and echinodermata. NOMENCLATURE: Authoritative publication, though no taxa are actually newly or re-described, with modern nomenclature by specialists and species-level assignments. | |
Metadata
| Database number: | 62224 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2006-07-15 09:01:14 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2006-07-15 09:01:13 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 17982. | A.W.A. Rushton, L.R.M. Cocks, and R.A. Fortey. 2002. Upper Cambrian trilobites and brachiopods from Severnaya Zemlya, Arctic Russia, and their implications for correlation and biogeography. Geological Magazine 139(3):281-290 [A. Miller/A. Hendy/A. Hendy] |