Västanå quarry, Dictyonema Shale (Ordovician of Sweden)

Also known as Vestanå, Alum Shale

Where: Östergötland, Sweden (61.0° N, 15.2° E: paleocoordinates 38.1° S, 12.1° W)

• coordinate estimated from map

When: Cordylodus proavus conodont zone, Dictyonema Shale Formation, Tremadocian (485.4 - 477.7 Ma)

Environment/lithology: deep subtidal; glauconitic shale and sandstone

• alum shale & lenses of stinkstone & sandstone

Size classes: macrofossils, mesofossils

Primary reference: L. E. Holmer and L. E. Popov. 1990. The acrotretacean brachiopod Ceratreta tanneri (Metzger) from the Upper Cambrian of Baltoscandia. Geologiska Föreningen i Stockholm Förhandlingar 112(3):249-263 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191158: authorized by Björn Kröger, entered by Björn Kröger on 12.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Graptolithina
 Graptoloida -
Rhabdinopora flabelliformis Eichwald 1840 graptoloid