Articles | Volume 44, issue 2
https://doi.org/10.5194/jm-44-713-2025
https://doi.org/10.5194/jm-44-713-2025
Research article
 | 
19 Dec 2025
Research article |  | 19 Dec 2025

Deep-sea benthic foraminiferal response to the Late Lutetian Thermal Maximum at Demerara Rise (ODP Site 1260, equatorial western Atlantic)

Irene Peñalver-Clavel, Thomas Westerhold, and Laia Alegret

Related authors

The MioOcean Age Framework: Age Model Database and Chronoinformatics Approach for synchronised Miocene Ocean Temperature, Climate and Proxy Records
Anna Joy Drury, Deborah N. Tangunan, Diederik Liebrand, Gerald Auer, Jennifer Kasbohm, David J. King, Thomas Westerhold, Anya J. Crocker, Karlos G. D. Kochhann, Wolfgang Kuhnt, Diana Ochoa, Tim E. van Peer, Wout Krijgsman, Marci M. Robinson, Neeraj S. Shah, Elizabeth C. Sibert, Bridget S. Wade, Sindia M. Sosdian, Alexandra Auderset, Sevasti Modestou, and Ann Holbourn
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-724,https://doi.org/10.5194/essd-2026-724, 2026
Preprint under review for ESSD
Short summary
MioOcean: database compilation and temperature proxy systematics in the Miocene oceans
Sindia M. Sosdian, Alexandra Auderset, Sevasti Modestou, Ann Holbourn, Flavia Boscolo-Galazzo, Anna Joy Drury, Anya V. Hess, Karlos G. D. Kochhann, Diederik Liebrand, Xiaoqing Liu, Jared Nirenberg, Neeraj S. Shah, Deborah Tangunan, Gerald Auer, Marcus P. S. Badger, Clara Bolton, Alexander Clark, Anya Crocker, David Evans, Sarah Feakins, Timothy Herbert, Emily Judd, Jennifer Kasbohm, David King, Wout Krijgsman, Wolfgang Kuhnt, Kira Lawrence, Caroline H. Lear, Kim Marshall-Mills, Erin McClymont, Nele Meckler, Paul Minton, Katrina Nilsson-Kerr, Diana Ochoa, Marci Robinson, Thamizharasan Sakthivel, Francesca Sangiorgi, Amelia E. Shevenell, Weimin Si, Elizabeth Sibert, Kasia K. Sliwinska, Appy Sluijs, Heather Stoll, Victoria Taylor, Tim van Peer, Bridget Wade, Thomas Westerhold, Evi Wubben, Yige Zhang, and Martin Ziegler
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-699,https://doi.org/10.5194/essd-2026-699, 2026
Preprint under review for ESSD
Short summary
Transient micropaleontological turnover across a late Eocene (Priabonian) carbon and oxygen isotope shift on Blake Nose (NW Atlantic)
Julia de Entrambasaguas, Thomas Westerhold, Heather L. Jones, and Laia Alegret
J. Micropalaeontol., 43, 303–322, https://doi.org/10.5194/jm-43-303-2024,https://doi.org/10.5194/jm-43-303-2024, 2024
Short summary
Paleogene Earth perturbations in the US Atlantic Coastal Plain (PEP-US): coring transects of hyperthermals to understand past carbon injections and ecosystem responses
Marci M. Robinson, Kenneth G. Miller, Tali L. Babila, Timothy J. Bralower, James V. Browning, Marlow J. Cramwinckel, Monika Doubrawa, Gavin L. Foster, Megan K. Fung, Sean Kinney, Maria Makarova, Peter P. McLaughlin, Paul N. Pearson, Ursula Röhl, Morgan F. Schaller, Jean M. Self-Trail, Appy Sluijs, Thomas Westerhold, James D. Wright, and James C. Zachos
Sci. Dril., 33, 47–65, https://doi.org/10.5194/sd-33-47-2024,https://doi.org/10.5194/sd-33-47-2024, 2024
Short summary
Late Miocene to Early Pliocene benthic foraminifera from the Tasman Sea (International Ocean Discovery Program Site U1506)
Maria Elena Gastaldello, Claudia Agnini, and Laia Alegret
J. Micropalaeontol., 43, 1–35, https://doi.org/10.5194/jm-43-1-2024,https://doi.org/10.5194/jm-43-1-2024, 2024
Short summary

Cited articles

Alegret, L. and Thomas, E.: Upper cretaceous and lower Paleogene benthic foraminifera from northeastern Mexico, Micropaleontology, 47, 269–316, 2001. 
Alegret, L. and Thomas, E.: Food supply to the seafloor in the Pacific Ocean after the Cretaceous/Paleogene boundary event, Mar. Micropaleontol., 73, 105–116, https:// doi.org/10.1016/j.marmicro.2009.07.005, 2009. 
Alegret, L., Ortiz, S., Orue-Etxebarria, X., Bernaola, G., Baceta, J.I., Monechi, S., Apellaniz, E., and Pujalte, V.: The Paleocene–Eocene thermal maximum: new data from the microfossil turnover at Zumaia section, Palaios, 24, 318–328, https://doi.org/10.2110/palo.2008.p08-057r, 2009. 
Alegret, L., Ortiz, S., Arenillas, I., and Molina, E.: What happens when the ocean is overheated? The foraminiferal response across the Paleocene-Eocene Thermal Maximum at the Alamedilla section (Spain), GSA Bull., 122, 1616–1624, 2010. 
Alegret, L., Reolid, M., and Vega Pérez, M.: Environmental instability during the latest Paleocene at Zumaia (Basque-Cantabric Basin): the herald of the Paleocene Eocene Thermal Maximum, Palaeogeogr. Palaeoclimatol. Palaeoecol., 497, 186–200, https://doi.org/10.1016/j.palaeo.2018.02.018, 2018. 
Download
Short summary
A study in the equatorial Atlantic Ocean (Ocean Drilling Program Site 1260) reveals the deep-sea biotic response to a middle Eocene warming event 41.52 million years ago. Low-diversity benthic foraminiferal assemblages indicate environmental stress during the warming event. We argue that the biotic response in the deep sea and carbonate dissolution at this site were likely related to its paleoceanographic setting.
Share