Skærbæk Klint, ash layer -16 (Eocene of Denmark)

Where: Denmark (56.9° N, 8.8° E: paleocoordinates 52.4° N, 5.5° E)

• coordinate stated in text

• outcrop-level geographic resolution

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

• A calcareous concretion originally made of mainly diatomite from the Knudeklint Member of the Lower Eocene Fur Formation. The concretion was not found in situ but was collected from loose material at the foot of the cliff. Its lithological characteristics show that it originates from the level at ash layer no. -16 (Henrik Madsen, pers. comm.) according to the tephrastratigraphy introduced by Bøggild (1918), which is approximately 3.8 m below the conspicuous ash layer no. -13 at this locality Dinoflagellate Zone 7 corresponding to the presence of Deflandrea oesbisfeldensis of Heilmann-Clausen (1985), earliest Ypresian, Early Eocene, c. 56.0–54.5 million years.

Environment/lithology: marine; lithified diatomite

Size class: macrofossils

Preservation: adpression

Collection methods: Repository: Museum Mors, Fossil and Mo-clay Museum

Primary reference: C. Waichert, J. Rodriguez, M. Rapoza and T. Wappler. 2021. The oldest species of Pompilidae to date, a new fossil spider wasp (Hymenoptera: Pompilidae). Historical Biology 33:1008-1011 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 221193: authorized by Matthew Clapham, entered by Matthew Clapham on 16.07.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

 Hymenoptera - Pompilidae
Cryptocheilus leleji n. sp. Waichert et al. 2021 spider wasp
MM 12192