This dataset contains fossil occurrence data from the Cretaceous Lopez de Bertodano Formation (Maastrichtian), on Seymour Island, compiled in August 2022. Fossils were collected by Carlos Macellari and William Zinsmeister over several field seasons in the 1980s, and are presently (since 2010) reposited in the Paleontological Research Institution, Ithaca, NY. Data in this spreadsheet are presented by locality (station number, as compiled by PRI), with fossils identified at the family level.

This work has been supported by Natural Environment Research Council (NERC) Independent Research Fellowship NE/S014756/1, awarded to EM. TMK is funded by a Cambridge International and Newnham College Scholarship, administered by Cambridge Trust. The Newnham College United States Travel Bursary funded TMK''s visit to the PRI Collections. RJW and HJG are funded by UK Research and Innovation (UKRI) Future Leaders Fellowship MR/W01002X/1 "The past, present and future of unique cold-water benthic (seafloor) ecosystems in the Southern Ocean" awarded to RJW. HJG is also funded by BIOPOLE, under the National Capability Science Multi-Centre award scheme (NC-SM2).