Where: Greenland (74.7° N, 20.9° W: paleocoordinates 59.2° N, 11.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Berriasian (145.0 - 139.8 Ma)

• "Fortunately, the bed of micaceous shale that yielded, the new ammonites here described is underlain by a conglomerate with derived fossils of which at least two ammonites are taken to be of Infra-Valanginian age... Some forty ft higher in the section than the Praetollia horizon there occured the Hecteroceras sp. nov., it is thus established that the Praetollia is earlier than the Hecteroceras level which itself is 430 ft below the horizon of Tollia payeri (still of Infra-Valanginian age)... The choice of the critical paleontological level was my own and it is not at all certain that another observer would have drawn the line at exactly the same level..."

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, micaceous shale

Size class: macrofossils

Preservation: mold/impression

Collection methods: collected by Dr. Wolf Mayng

Primary reference: L. F. Spath. 1952. Some infra-Valanginian ammonites from Lindemans Fjord, Wollaston Forland; with a note on the base of the Cretaceous, [Part] 2 of Additional observations on the invertebrates (chiefly ammonites) of the Jurassic and Cretaceous of East Greenland. Meddeleser om Grønland 133(4):1-40 [M. Aberhan/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 68999: authorized by Martin Aberhan, entered by Sabine Nürnberg on 15.02.2007

Creative Commons license: CC BY (attribution)