GGU 314802 - Albert Heim Bjerge (Cambrian of Greenland)

Where: Greenland (74.1° N, 23.0° W: paleocoordinates 30.8° S, 48.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bastion Formation, Dyeran (515.3 - 511.2 Ma)

• SPECIFIC COMMENTS: Collection is from the base of the upper (shale) part of the Bastion Formation.

•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 Bastion Formation is 150 m thick at Athe Albert Heim Bjerge locality is mainly galuconite-rich sandstone and siltstone in the lower part and shale with minor carbonate in its upper part.

• bed-level stratigraphic resolution

Environment/lithology: marine; shale

• The Bastion and Ella Island Formations from part of a thick succession of shallow-marine Proterozoic-Ordovician sediments deposited on the Laurentian shelf.
• Shale with minor carbonate.

Size class: macrofossils

Collection methods: bulk, chemical, acetic, sieve,

• 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)

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49462: authorized by Austin Hendy, entered by Austin Hendy on 16.04.2005, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• 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.
Artiopoda
 Agnostida - Calodiscidae
Calodiscus lobatus3 Hall 1847
Trilobita
  -
Trilobita indet.3 Walch 1771 trilobite
 Redlichiida - Wanneriidae
Wanneriidae indet.3 Hupé 1952 trilobite
Helcionelloida
 Helcionellida -
 Helcionellida - Helcionellidae
Capitoconus inclinatus2, "Mackinnonia taconica" = Davidonia taconica2
Capitoconus inclinatus2 Skovsted 2004
"Mackinnonia taconica" = Davidonia taconica2 Landing and Bartowski 1996
Brachiopoda
  - Mickwitziidae
Setatella significans4 Skovsted et al. 2010
Lingulata
 Lingulida - Botsfordiidae
Hyolitha
 Orthothecida - Circothecidae
Conotheca australiensis1 Bengtson et al. 1990
Archaeocyatha
  -
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloriidae indet.3 Walcott 1920