Sønsterud farm, Ringerike (Silurian of Norway)

Where: Norway (60.0° N, 10.3° E: paleocoordinates 21.1° S, 8.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Sjørvoll Member (Steinsfjorden Formation), Sheinwoodian (433.4 - 430.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; lithified, calcareous siltstone

Size class: macrofossils

Collected by O.E. Tetlie in 2001

• Repository: Paleontologisk Museum, Oslo (PMO)

Primary reference: O. E. Tetlie. 2006. Two new Silurian species of Eurypterus (Chelicerata: Eurypterida) from Norway and Canada and the phylogeny of the genus. Journal of Systematic Palaeontology 4(4):397-412 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184697: authorized by Matthew Clapham, entered by Matthew Clapham on 19.03.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Leperditicopida - Leperditiidae
Leperditia sp. Rouault 1851 ostracod
 Xiphosurida - Eurypteridae
Eurypterus hankeni n. sp. Tetlie 2006 eurypterid
 Xiphosurida - Pterygotidae
Pterygotus sp. eurypterid
 Lingulida -
Lingulida indet. Waagen 1885
"Lingula sp."
 Modiomorphida - Modiomorphidae
Modiomorphidae indet. Miller 1877 clam
Colpomya sp. or Modiolopsis sp.
 Euomphalina - Euomphalidae
Straparollus sp. de Montfort 1810 snail
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid