Core 13/2-U-2, Unit D, level 40.52 - 40.53 (Silurian to of Norway)

Where: Norway (63.1° N, 7.8° E: paleocoordinates 23.4° S, 11.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: D Member, Rhuddanian to Rhuddanian (443.4 - 438.5 Ma)

• "Both the fossil content and the lithology are very similar to the age-equivalent Solvik Fm. of the Oslo region." "Both the macrofaunas and the microfossils definitely indicate an early Llandovery (Rhuddanian) age, possibly just extending into the succeeding Aeronian Stage."

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified shale and limestone

• Shale dominated unit, contains thin beds of limestone often enriched in fossil debris. Mostly planar lamination, occasional "ripple drift" lamination. Moderately deep shelf community.

Collection methods: core,

Primary reference: M. Smelror, R. M. Cocks, A. Mork, B. E. E. Neuman, and H. A. Nakrem. 1997. Upper Ordovician - Lower Silurian strata and biota from offshore South Norway. Norsk Geologisk Tidsskrift 77:251-268 [J. Alroy/M. Sommers/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2892: authorized by John Alroy, entered by Mike Sommers on 21.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• Some beds (unspecified which ones) of core contain crinoid debris, one contains numerous gastropods. In thin sections trilobite, ostracod, and bryozoan fragments are visible.
Show authors, comments, and common names
Rhynchonellata
 Orthida - Hesperorthidae
Hesperorthis sp.
Hesperorthis sp. Schuchert and Cooper 1931
 Orthida - Dalmanellidae
Isorthis sp.
Isorthis sp. Kozlowski 1929
 Pentamerida - Clorindidae
"Clorinda undata" = Clorilamnulella undata
"Clorinda undata" = Clorilamnulella undata de Sowerby and Murchison 1839
 Pentamerida - Stricklandiidae
Stricklandia lens
Stricklandia lens Sowerby 1839