The Wilhelmøya Formation is a

geologic formation A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exp ...

in Svalbard,

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and the ...

. The marginal marine; concretionary, sideritic

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates ...

s preserve indeterminate ichthyosaur and plesiosaur fossils dating back to the Rhaetian

period Period may refer to: Common uses * Era, a length or span of time * Full stop (or period), a punctuation mark Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (or rhetorical period), a concept ...

.Kapp Koburg, Kongsøya
at Fossilworks.org

References

Geologic formations of Norway Triassic System of Europe Triassic Norway Rhaetian Stage Sandstone formations Paleontology in Norway Geology of Svalbard {{Triassic-stub

See also

References