Zone V2a, Ny Friesland: Billingen, Norway
collected by R. A. Fortey 1967

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Asaphida - Nileidae
Trilobita - Asaphida - Asaphidae
Trilobita - Asaphida - Remopleurididae
Trilobita - Ptychopariida - Shumardiidae
Trilobita - Trinucleida - Raphiophoridae
Endymionia indet. Billings 1865
Trilobita - Trinucleida - Alsataspididae
Trilobita - Phacopida - Encrinuridae
Trilobita - Phacopida - Cheiruridae
Trilobita - Proetida - Telephinidae
Trilobita - Olenida - Olenidae
Trilobita - Odontopleurida - Odontopleuridae
Ceratocephala sp. Warder 1838
Trilobita - Corynexochida - Styginidae
Protostygina sp. Prantl and Pribyl 1949
Agnostida - Metagnostidae
Agnostida - Agnostidae
see common names

Geography
Country:Norway State/province:Spitsbergen
Coordinates: 79.8° North, 17.8° East (view map)
Paleocoordinates:22.7° North, 60.1° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Ordovician
10 m.y. bin: Ordovician 2
Key time interval: Billingen Trilobite zone:  Pseudocybele nasuta
Age range of interval: 475.6 - 471.3 m.y. ago
Stratigraphy
Formation:Valhallfonna Member:Olenidsletta
Stratigraphic resolution:group of beds
Stratigraphy comments: While collections were made throughout section, only ranges of trilobite species are reported. Zone V2a comprises meters 75-100 of the Olenidsletta Member. Likely correlates with part of "zone J" of Ross 1951, Hintze 1951, 1952.

This would be Billingen on the Baltic scale (PJW).
Lithology and environment
Primary lithology:gray lithified "limestone"
Secondary lithology:black lithified "limestone"
Lithology description: "In this part of the section grey, crystalline limestones with irregular, streaky laminations alternate with even bedded black flags." Fortey 1974
Environment:slope
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Collectors:R. A. Fortey Collection dates:1967
Taxonomic list comments:Graptolites also present (see Fortey and Brunton 1973)
Metadata
Database number:106473
Authorizer:M. Hopkins Enterer:M. Hopkins
Modifier:P. Wagner Research group:marine invertebrate
Created:2011-03-18 10:28:11 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-03-18 10:28:11
Creative Commons license:CC0
Reference information

Primary reference:
35227. R. A. Fortey. 1980. The Ordovician trilobites of Spitsbergen. III. Remaining trilobites of the Valhallfonna Formation. Norsk Polarinstitutt Skrifter 171:1-163 [M. Hopkins/M. Hopkins]