Where: Poland (50.9° N, 21.9° E: paleocoordinates 40.7° N, 19.7° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Early/Lower Cenomanian to Early/Lower Cenomanian (99.6 - 93.5 Ma)
• According to Marcinowski and Walaszczyk (1985), the ammonite assemblage from this level is composed of numerous lower Cenomanian taxa plus those characteristic of the middle Cenomanian Acanthoceras rhotomagense Zone (with mixed elements of both the Turrilites costatus and T. acutus subzones). Foraminiferal assemblages include the planktonic Rotalipora cushmani, which is a middle to early late Cenomanian form and is compatible with the ammonite-based dating of this unit (Walaszczyk 1987). Given the age-range of the associated ammonites, which are preserved as mineralised moulds, the studied nautilid material is best considered as early to/or middle Cenomanian in age.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, burrowed, hardground, glauconitic, phosphatic marl
Size class: macrofossils
Preservation: mold/impression, replaced with phosphate
Collection methods: Repository: Instutute of Paleobiology of the Polish Academy of Sciences, Warszawa (abbreviated ZPAL N.III)
Primary reference: M. Machalski and M. Wilmsen. 2015. Taxonomy and taphonomy of Cenomanian (Upper Cretaceous) nautilids from Annopol, Poland. Acta Geologica Polonica 65:495-506 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 175630: authorized by Matthew Clapham, entered by Matthew Clapham on 22.12.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Eutrephoceras bouchardianum d'Orbigny 1840 nautiloid
Cymatoceras tourtiae Schluter 1876 nautiloid
Cymatoceras deslongchampsianum d'Orbigny 1840 nautiloid |