The Wilhelmøya Formation is a geologic formation in Svalbard, Norway. The marginal marine; concretionary, sideritic sandstones preserve indeterminate ichthyosaur and plesiosaur fossils dating back to the Rhaetian period.
The Wilhelmøya Formation is a geologic formation in Svalbard, Norway. The marginal marine; concretionary, sideritic sandstones preserve indeterminate ichthyosaur and plesiosaur fossils dating back to the Rhaetian period. (en)
The Wilhelmøya Formation is a geologic formation in Svalbard, Norway. The marginal marine; concretionary, sideritic sandstones preserve indeterminate ichthyosaur and plesiosaur fossils dating back to the Rhaetian period. (en)