Telychian (Llandovery, Silurian) conodonts from the LaPorte City Formation of eastern Iowa, USA (East-Central Iowa Basin) and their implications for global Telychian conodont biostratigraphic correlation

Cyrtograptids from the Telychian (upper Llandovery) of Kinnekulle Mountain, Southern

Postprint This is the accepted version of a paper published in GFF. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination. Access to the published version may require subscription. 1 The late Llandovery graptolite fauna of the Retiolites Shales on Kinnekulle Mountain in the province of Västergötland has long been known but never illus...

Conodonts from the Aplington Formation of Northcentral Iowa

Conodonts comprising six species have been recovered from the Aplington Formation from five localities in northccntral Iowa. Although the Aplington conodont fauna is meager -it suggests a correlation with the Maple Mill Shale of southeastern Iowa. The Aplington Formation is vegarded as representing the youngest Devonian formation exposed in northcentral Iowa.

Early Silurian (Llandovery) Trilobite fauna from

The aim of this study is to analyze the assemblage of trilobites in the Silurian sequences of Iran by exploring stratigraphic section of the Silurian Niur Formation (Asadli section).  Based on comprehensive field studies and laboratory investigations three Trilobite genera were identified in the study area including Calymene blumenbachii, Gravicalymene convolva, Dalmanites brevigladiolus </...

Early Geological Explorations of the Silurian System in Iowa

Radon Measurements in Houses in Eastern and Central Iowa