Fjäcka, 9 km SSW of Furudal (Ordovician of Sweden)

Where: Dalarna, Sweden (60.9° N, 15.1° E: paleocoordinates 30.7° S, 7.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Laufeldochitina stentor other zone, Dalby Formation, Kukruse (460.9 - 449.5 Ma)

• very top of Laufeldochitina stentor Zone

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

• The Dalby Limestone consists of a 19 m succession of bedded or slightly nodular calcarenites at the stratotype locality in Fjäcka, Siljan District, Sweden (Jaanusson 1960, 1963). The uppermost units often contain several thick layers of bentonites intercalated between beds of siliceous limestone, micrite or mudstone.

Size class: macrofossils

Preservation: original silica

Collection methods: The material for this study was based on fieldwork collections by the first author, and museum collections at the Swedish Museum of Natural History, Stockholm (NRM), Museum of Evolution, Uppsala University (PMU), and the Geological Survey of Sweden, Uppsala (SGU). Additional samples have been studied from collections at the Museum für Naturkunde der Humboldt-

•Universität zu Berlin (MB), the Bundesanstalt für Geowissenschaften und Rohstoffe, Berlin (BGR), and the Palaeontological Museum, University of Oslo (PMO).

Primary reference: Å M. Frisk and J. O. R. Ebbestad. 2007. Paragastropoda, Tergomya and Gastropoda (Mollusca) from the Upper Ordovician Dalby Limestone, Sweden. Geologiskt Forum 129(2):83-99 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 84867: authorized by Pete Wagner, entered by Pete Wagner on 15.11.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Tergomya
 Cyrtonellida - Carcassonnellidae
Sarkanella epelys n. sp. Frisk and Ebbestad 2007
Gastropoda
 Euomphalina - Lesueurillidae
Eccyliopterus regularis Remelé 1888 snail
Paragastropoda
 Mimospirida - Clisospiridae
Mimospira tenuistriata Wängberg-Eriksson 1979
 Mimospirida - Onychochilidae