Profilbekken Mbr, Valhallfonna Fm - Ny Friesland, Spitsbergen (Ordovician of Norway)

Where: Norway (78.9° N, 18.0° E: paleocoordinates 16.0° N, 32.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Profilbekken Member (Valhallfonna Formation), Llanvirn (466.0 - 460.9 Ma)

• STRATIGRAPHIC RELATIONS: From Profilbekken Mbr within the Valhallfonna Formation. AGE: Associated fauna indicates that the member belongs within the Whiterock stage of N. America, correlating approximately with the Kundan stage of the Baltic region, and early Llanvirn of the British successions. STRATIGRAPHIC POSITION: 32 m above the base of the Profilbekken Member in its type section.

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, glauconitic, shelly/skeletal, brown, calcareous, cherty/siliceous limestone

• ENVIRONMENT: No environmental data or interpretation provided.
• SPECIFIC LITHOLOGY: Brown calcilutite limestone containing scattered glauconitic grains and silicified fauna. LITHIFICATION: Assumed to be lithified given facies description, age and figured specimens.

Size class: macrofossils

Preservation: permineralized, original phosphate, replaced with silica

Collection methods: COLLECTOR: Presumably collected by Fortey and Brunton. REPOSITORY: Sedgewick Museum, Cambridge U.K.).

Primary reference: N. J. Morris and R. A. Fortey. 1976. The significance of Tironucula gen. nov. to the study of bivalve evolution. Journal of Paleontology 50(4):701-709 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 67174: authorized by Austin Hendy, entered by Austin Hendy on 12.11.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to taxonomic group described in manuscript, other fauna presumably reported in Fortey and Brunton (1973). Trilobites mentioned to be present. NOMENCLATURE: Authoritative publication, with species-level designations.
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
Bivalvia
 Nuculida - Praenuculidae
Tironucula jugata Morris and Fortey 1976 clam
Pteraspidomorpha
  -
Anatolepis heintzi Brockelie and Fortey 1976