Where: Denmark (56.9° N, 8.7° E: paleocoordinates 52.4° N, 5.4° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Fur Formation, Ypresian (56.0 - 47.8 Ma)

• Earliest Early Eocene "An Early Eocene age of 54.04 ± 0.14 Ma has been determined for layer +19 and 54.52 ± 0.05 Ma for layer −17 by the Ar40–Ar39 method (Chambers et al. 2003). Polystoechotidae discussed here were recovered from laminated carbonate concretions above theCIE and the dated tephra layers, between layers +25 and +30 in the ‘upper insect level’ (Andersen 2001)." Archibald & Makarkin, 2006

Environment/lithology: marine; lithified diatomite and volcaniclastic

Size class: macrofossils

Preservation: adpression

Collected by Erwin Rettig

• Repository: Fur Museum (formerly collection of Erwin Rettig)

Primary reference: J. Rust. 1999. Oldest known pteroplistine cricket and other Gryllidae (Orthoptera) from the Paleogene Fur and Ølst Formations of Denmark. Entomologica Scandinavica 30:35-45 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113015: authorized by Matthew Clapham, entered by Jered Karr on 19.07.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)