Where: Switzerland (47.3° N, 7.8° E: paleocoordinates 36.8° N, 17.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• From multiple horizons in the lower 25 m of the Opalinus Clay. Horizons almost certainly are those in Etter (1990) but are not stated.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone

Size class: macrofossils

Preservation: adpression

Collected by W. Etter in 1985-1987

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

Primary reference: W. Etter. 1988. Isopoden und Tanaidaceen (Crustacea, Malacostraca) aus dem unteren Opalinuston der Nordschweiz. Eclogae Geologicae Helvetiae 81:857-877 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 138781: authorized by Matthew Clapham, entered by Matthew Clapham on 27.01.2013

Creative Commons license: CC BY (attribution)