Where: Switzerland (47.5° N, 8.2° E: paleocoordinates 37.0° N, 17.9° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Opalinus Clay Formation, Opalinum (175.6 - 171.6 Ma)

• The middle part of the Opalinus Clay (the so-called "finely bedded slightly bioturbated dark Opalinus Clay" of Matter et al. 1987), about 58 m above the base of that member (at well depth 392.77 m)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone

Size class: macrofossils

Preservation: adpression

Collection methods: core

• Repository: PIMUZ (Paleontological Institute and Museum, University of Zurich)

Primary reference: W. Etter. 2004. Decapod crustaceans from the Middle Jurassic Opalinus Clay of northern Switzerland, with comments on crustacean taphonomy. Eclogae Geologicae Helvetiae 97:381-392 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 138776: authorized by Matthew Clapham, entered by Matthew Clapham on 27.01.2013

Creative Commons license: CC BY (attribution)