GGU 314814 - Albert Heim Bjerge: Dyeran, Greenland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mobergellidae
Discinella micans (Billings 1871)
recombined as Hyolithellus micans
Coeloscleritophora - Chancelloriida - Chancelloriidae
Chancelloriidae indet. Walcott 1920
Bradoriida - Indianidae
Indiana secunda (Matthew 1895)
Mickwitziidae
Mickwitzia cf. occidens Walcott 1908
Hyolithida
Hyolithida indet. Mathew 1962
Orthothecida
Orthothecida indet. Marek 1966
Cupitheca sp. (Duan 1984)
unclassified
Echinodermata indet. Klein 1754
Hyolithelminthida - Hyolithellidae
Hyolithellus micans (Billings 1871)
Hyolithelminthida - Torellellidae
Torellella laevigata
[entered as Torrelella laevigata]
see common names

Geography
Country:Greenland
Coordinates: 74.1° North, 23.0° West (view map)
Paleocoordinates:30.8° South, 48.9° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Cambrian Epoch:Early/Lower Cambrian
10 m.y. bin:Cambrian 2
Key time interval:Dyeran
Age range of interval:516.00000 - 513.00000 m.y. ago
Stratigraphy
Formation:Ella Island
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From Ella Island Fm, which overlies the Bastion Fm and in turn the Kløftelv Fm (lower Cambrian) and is overlain by the Hyolithus Creek Fm (lower-middle Cambrian) and Dolomite Point Fm (middle Cambrian). STRATIGRAPHIC POSITION: From the basal part of the Ella Island Fm (see fig. 1), immediately above GGU 314811-13. AGE: Well constrained to the late Early Cambrian (Dyeran Age or Bonnia-Olenellus Chron; see Palmer 1998) by the presence of Olenellid trilobites (Poulson 1932, Cowie and Adams 1957) and baltisphaerid acritarchs (Vidal 1979). THICKNESS: Thickness of strata collection is derived from must be less than 2m, and lies within a 80-100 m thick section.
Lithology and environment
Primary lithology: lithified "limestone"
Includes fossils?Y
Lithology description: GENERAL LITHOLOGY: Limestone, in places oolitic. LITHOLOGY: Lithified, based on figured specimens and facies description.
Environment:shallow subtidal indet.
Geology comments: ENVIRONMENT: High energy, shallow-water environment.
Taphonomy
Modes of preservation:body,cast,mold/impression,original calcite,original phosphate,replaced with phosphate
Size of fossils:macrofossils
Fragmentation:frequent
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:bulk,chemical,acetic,sieve,field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Collection method comments: COLLECTOR: Collected by S. Peel and M.P. Smith (1988), and earlier collectors. PREPARATION: 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. REPOSITORY: All specimens are housed in the Geological Museum in Copenhagen (MGUH).
Taxonomic list comments:COVERAGE: 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. NOMENCLATURE: Authoritative publication, with occurrences identified to species resolution where possible and with modern nomenclature.
Metadata
Database number:67786
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Created:2006-12-09 13:48:17 Last modified:2013-11-25 13:37:23
Access level:the public Released:2006-12-09 13:48:08
Creative Commons license:CC BY
Reference information

Primary reference:

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]