Where: Iran (37.5° N, 57.7° E: paleocoordinates 8.6° S, 55.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Abderaz Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• Upper Abderaz Formation; lower upper Campanian, below the FO of Nostoceras (Bostrychoceras) polyplocum (Roemer, 1841) and probably above the LO of Hoplitoplacenticeras (H.) vari. (Roemer, 1841) and probably above the last occurrence of Hoplitoplacenticeras (H.) vari (Schlüter, 1872). A nannofossil sample from the ammonite-bearing interval corresponds to the upper Campanian nannofossil zone UC15/CC22.

• bed-level stratigraphic resolution

Environment/lithology: lithified, gray, argillaceous lime mudstone

Size class: macrofossils

Collection methods: Repository: Geological Survey of Iran, northeast territory and Geosciences Research Center, Mashad (repository AQ = Abderaz, Qaleh-Zoo).

Primary reference: B. Niebuhr, M. Taherpour Khalil Abad, M. Wilmsen, J. Noorbakhsh Razmi, A. A. Aryaei and A. Ashouri. 2016. First record of late Campanian ammonites from the Abderaz Formation of the Koppeh Dagh, northeastern Iran. Cretaceous Research 58:202-222 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174529: authorized by Matthew Clapham, entered by Matthew Clapham on 14.11.2015

Creative Commons license: CC BY (attribution)