Where: Bulgaria (43.1° N, 23.7° E: paleocoordinates 30.2° N, 21.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Trochoceramus radiosus inoceramid zone, Darmantsi Formation, Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• Darmantsi Formation, includes ammonites of Pachydiscus cf. colligatus (Binkhorst) and P. neubergicus, and which is dominated by the inoceramid genera Cataceramus, Platyceramus and Trochoceramus. The inoceramids yielded a suite of characteristic species that are indicative for the lower Maastrichtian Trochoceramus radiosus inoceramid Zone.

• bed-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments

Size class: macrofossils

Collection methods: Repository: Museum of Palaeontology and Historical Geology at Sofia University "St. Kliment Ohridski"

Primary reference: D. Dochev and L. Metodiev. 2016. New record of Diplomoceras cylindraceum (Defrance, 1816) from the Maastrichtian of the Western Fore-Balkan (Bulgaria). Geologica Balcanica 45:33-45 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 188089: authorized by Matthew Clapham, entered by Matthew Clapham on 23.08.2017

Creative Commons license: CC BY (attribution)