From Wikipedia, the free encyclopedia
Solvik Formation
Stratigraphic range: Early Llandovery ( Silurian) [1]
Type Geological formation
Sub-units
  • Myren Member [1]
  • Spirodden Member [1]
  • Leangen Member [1]
  • Padda Member [1]
Location
Country  Norway

The Solvik Formation is a geologic formation in the central Oslo Region of Norway. [1] It preserves fossils dating back to the early Silurian period. [1]

Fossil content

Brachiopods
Genus Species Presence Material Notes Images
? Anabaria Leangen Member. [2] 2 valves. [2]
Atrypina Leangen Member. [2] 2 shells. [2]
? Becscia ?B. pentagona Basal Myren Member. [2]
Clintonella C. aprinis "32.5 m above the base of the Leangen Member". [2] Molds. [2]
Cryptothyrella Top of the Leangen Member at Jongsåsveien. [2] A pedicle valve. [2]
Eisaella E. minuta Upper Myren Member and Leangen Member. [2]
E. uniplicata "From basal Myren Member up to 55 m above the base". [2]
? Glassia ?G. sp. "Only one well-preserved specimen (PMO 87.601)". [2]
Hindella H. kiaeri * 3–4 meters above the base of the formation at one locality at Bekkestua, in Bærum. [2]
  • 3 meters and 8 meters above the base of the formation at Konglungø and Vakås, respectively. [2]
Also occurs in the Langara Formation.
Meifodia M. prima ovalis "Uppermost Myren and the lower parts of Padda members". [2]
M. prima prima Near the base of the formation. [2] A atrypid.
M. subundata Middle part of the formation. [3] A atrypid.
Thulatrypa T. gregaria Uppermost Leangen Member. [2]
T. huangi Leangen Member. [2]
T. vikenensis "8–10 m above the base of the Myren Member". [2]
?T. sp. Leangbukta and Skytterveien. [2] "PMO 113.698 (brachial mold), 153.873 (sectioned), 158.222, and 158.610, all whole valves". [2] A new species, may be assigned to another genus if more material becomes available.
Shelvothyris S. bivittata 11 meters above the base of the Leangen Member. [2]

See also

References

  1. ^ a b c d e f g Baarli, B. Gudveig. "The stratigraphy and sedimentology of the early Llandovery Solvik Formation in the central Oslo Region, Norway". Norsk Geologisk Tidsskrift.
  2. ^ a b c d e f g h i j k l m n o p q r s t u v Baarli, B. Gudveig (2021-08-16). "The smooth, spire-bearing brachiopods after the terminal Ordovician extinction through lower Llandovery in the central Oslo region, Norway". Journal of Paleontology. 96 (1): 81–111. doi: 10.1017/jpa.2021.72. ISSN  0022-3360.
  3. ^ Copper, Paul (September 1995). "Five new genera of Late Ordovician-Early Silurian brachiopods from Anticosti Island, eastern Canada". Journal of Paleontology. 69 (5): 846–862. doi: 10.1017/s0022336000035526. ISSN  0022-3360.