Where: Switzerland (47.5° N, 7.9° E: paleocoordinates 36.6° N, 17.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Harpoceras falciferum ammonoid zone, Unterer Stein Member (Posidonia Shale Formation), Toarcian (182.7 - 174.1 Ma)

• exaratum subzone

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified, carbonaceous lime mudstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: W. Etter and O. Kuhn. 2000. An articulated dragonfly (Insecta, Odonata) from the Upper Liassic Posidonia Shale of Northern Switzerland. Palaeontology 43:967-977 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 97601: authorized by Matthew Clapham, entered by Matthew Clapham on 11.08.2010

Creative Commons license: CC BY (attribution)