Borealis borealis Community in Ringerike (Silurian of Norway)

Where: Norway (60.2° N, 10.3° E: paleocoordinates 25.5° S, 9.1° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Rytteraker Formation, Aeronian (440.8 - 438.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal grainstone

• "The community is found in carbonates and in most instances forms banks..[also lenses]. These lenses were deposited in offshore sediments, but above storm wave base, in an outermost BA3 position. In other districts it may be found as massive banks showing a considerable degree of turbulence and sorting of shells, probably above normal wave base."
• "All [Ringerike localities] characterized by biosparitic beds, dominated by pedicle valves..."

Primary reference: B. G. Baarli, H. B. Keilen, and M. E. Johnson. 1999. Silurian communities of the Oslo Region, Norway. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 327-349 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 14267: authorized by Michael Foote, entered by Michael Foote on 29.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Pentamerida - Virgianidae
Borealis borealis
Borealis borealis Eichwald 1842
Stromatoporoidea
 Stromatoporoidea -
Stromatoporoidea indet.
Stromatoporoidea indet. stromatoporoid sponge