Where: Algeria (33.3° N, 0.8° E: paleocoordinates 20.1° N, 0.6° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Choffaticeras sinaiticum ammonoid zone, Rhoundjaïa Formation, Early/Lower Turonian (93.5 - 89.3 Ma)

• Unlabeled level between Ak50 and Ak56. The sample number is unknown (Ak54 is a guess from the approximate position).

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Abou Bekr Belkaïd University of Tlemcen (Algeria)

Primary reference: M. L. Guendouz, D. Zaoui, M. Benyoucef, G. El Qot, C. Meister, A. Piuz, and M. Bensalah. 2022. Late Cenomanian-early Turonian ammonites from the Western Saharan Atlas (Algeria). Historical Biology 34:2156-2172 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 227897: authorized by Matthew Clapham, entered by Matthew Clapham on 09.11.2022

Creative Commons license: CC BY (attribution)