Where: Germany (49.2° N, 11.4° E: paleocoordinates 38.6° N, 19.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Posidonienschiefer Formation, Falciferum (183.0 - 182.0 Ma)

• The Posidonia Shale of the falciferum zone rests unconformably (with an erosional hiatus) on blue-grey claystones of the upper Pliensbachian. One or two concretion layers of laminated, micritic limestone nodules are exposed about one meter above the base of the Posidonia Shale. These fossiliferous concretions contain abundant insects and driftwood together with marine invertebrates and vertebrates. Although these were traditionally named “siemsensi” nodules (Krumbeck, 1932), the concretions do not yield the ammonite Lobolytoceras siemensi (Denckmann, 1887), an index fossil of the older tenuicostatum zone, but contain Lytoceras ceratophagum (Quenstedt, 1885) in association with ammonites characteristic of the falciferum zone (Riegraf et al., 1984; Riegraf, 1985).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary shale

Size class: macrofossils

Preservation: mold/impression

Reposited in the BSP

• Repository: Winfried Hartwig collection (donated to Bayerischen Staatssammlung für Paläontologie und Geologie München, BSPG); Helmut Tischlinger collection

Primary reference: A. Nel. 1996. Un Tettigarctidae fossile du Lias européen (Cicadomorpha, Cicadoidea, Tettigarctidae). École Pratique des Hautes Études, Biologie et Évolution des Insectes 9:83-94 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105428: authorized by Matthew Clapham, entered by Jered Karr on 20.02.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)