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Solvik Formation

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Solvik Formation
Stratigraphic range: Early Llandovery (Silurian)[1]
TypeGeological 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

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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

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References

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  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.