Trilobites and bradoriid arthropods from the Middle and Upper Cambrian at Gudhem in Västergötland, Sweden
Middle and basal Upper Cambrian strata are well exposed in an old quarry at Gudhem in the Falbygden area of Västergötland, south-central Sweden. The exposures consist of finely laminated alum shale with scattered stinkstone (orsten) lenses, up to 2.3 m in diameter. Four sections have been measured and sampled in order to establish the succession of trilobite species. Fossils are generally preserve