Journal of Micropalaeontology
Journal of Micropalaeontology
JM
Articles | Volume 45, issue 1
Articles | Volume 45, issue 1
https://doi.org/10.5194/jm-45-297-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-45-297-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 45, issue 1
Research article
 | 
15 Apr 2026
Research article |  | 15 Apr 2026

Planktic foraminiferal distribution across the Cretaceous–Paleogene (K–Pg) boundary from the Neuquén Basin (Cerro Azul section): biostratigraphy and paleoenvironmental significance

Guilherme Krahl, Andrea Concheyro, Marlone H. H. Bom, Rodrigo M. Guerra, Karlos G. D. Kochhann, Thorsten Bauersachs, Lorenz Schwark, Daiane Ceolin, Telma Musso, and Gerson Fauth

Viewed

Total article views: 374 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
250 104 20 374 31 8 11
  • HTML: 250
  • PDF: 104
  • XML: 20
  • Total: 374
  • Supplement: 31
  • BibTeX: 8
  • EndNote: 11
Views and downloads (calculated since 15 Apr 2026)
Cumulative views and downloads (calculated since 15 Apr 2026)

Viewed (geographical distribution)

Total article views: 374 (including HTML, PDF, and XML) Thereof 374 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 05 May 2026
Download
Short summary
The Maastrichtian–Danian record at Cerro Azul (Argentina) shows shifts in planktic foraminiferal assemblages and sea surface temperatures (SSTs) (TEXH86) tied to the K–Pg (Cretaceous–Paleogene) extinction. Guembelitriid dominance and high-latitude affinity define the early Danian, with Antarcticella pauciloculata present. At 45 cm above the boundary, tropical species appear with a ~1.5 °C SST rise, signalling initial post-extinction climatic recovery.
Read more
Share