GGU 314935-36 - C.H. Ostenfeld Nunatak: Dyeran, Greenland
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Hyolithelminthida
- Hyolithellidae
|
|||||||
|
Hyolithellus micans
(Billings 1871)
|
Skovsted 2006 | ||||||
|
Lingulata
- Lingulida
- Eoobolidae
|
|||||||
|
Eoobolus priscus
(Poulsen 1932)
|
|||||||
|
Trilobita
|
|||||||
|
Trilobita indet.
Walch 1771
|
Skovsted 2006 | ||||||
|
Trilobita
- Redlichiida
- Wanneriidae
|
|||||||
|
Wanneriidae indet.
(Hupé 1952)
|
Skovsted 2006 | ||||||
| see common names | |||||||
Geography
| Country: | Greenland |
| Coordinates: | 74.4° North, 22.8° West (view map) |
| Paleocoordinates: | 30.5° South, 48.8° West |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Series 2 |
| 10 m.y. bin: | Cambrian 2-3 | ||
| Key time interval: | Dyeran | ||
| Age range of interval: | 514.80000 - 511.00000 m.y. ago |
Stratigraphy
| Formation: | Bastion | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: SPECIFIC COMMENTS: Collection is from near the middle of the Bastion Formation. Lumped collections from same horizon, including GGU 314935-36.
GENERAL COMMENTS: The Kloftelv Formation is overlain by the fossiliferous Bastion and Ella Island foramtions, both of middle Dyerian age (late Early Camrbian, equivalent of the Botomian). The Ella Island Formation (100 m thick) is mainlyy limestone and calcareous sandstone and is overlain by essentially unfossiliferous dolomites of the Hyolithus Creek and Dolomite Point formations, spanning the rest of the Cambrian Period. | |||||
Lithology and environment
| Primary lithology: | "shale" |
| Includes fossils? | Y |
| Lithology description: Limestone and calcareous sandstone. | |
| Environment: | marine indet. |
| Geology comments: The Bastion and Ella Island Formations from part of a thick succession of shallow-marine Proterozoic-Ordovician sediments deposited on the Laurentian shelf. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,chemical,acetic,sieve,field collection,survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Rock samples were dissolve in buffered 10 percent acetic acid to retrieve acid-resistent microfossils. The resulting residues were sieved and the heavy mineral fraction separated using sodium polytungstate. All specimens are housed in the Geological Museum in Copenhagen (MGUH) | |
| Taxonomic list comments:Exhaustive for Brachiopoda. The residues of the acid-digested samples contain a well-preserved and diverse small shelly fauna including helcionellid molluscs, coelosclerites, lapworthellids, and problematic fossils. Add Gubanov et al. press and Skovsted in press (at the time of April, 2005) for complete fauna - references in current reference. | |
Metadata
| Database number: | 49472 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2005-04-16 12:49:46 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2005-04-16 12:49:46 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 13228. | C. B. Skovsted and L.E. Holmer. 2005. Early Cambrian brachiopods from north-east Greenland. Palaeontology 48(2):325-345 [A. Miller/A. Hendy/A. Hendy] |
Secondary references:
| 19364 | C. B. Skovsted. 2006. Small shelly fauna from the upper Lower Cambrian Bastion and Ella Island Formations, North-East Greenland. Journal of Paleontology 80(6):1087-1112 [A. Hendy/A. Hendy] |