Articles | Volume 45, issue 1
https://doi.org/10.5194/jm-45-147-2026
https://doi.org/10.5194/jm-45-147-2026
Research article
 | 
11 Feb 2026
Research article |  | 11 Feb 2026

Developing a new species-level database of Cretaceous calcareous nannoplankton occurrences – Uneptune

Yi Zhang, Jeremy R. Young, Paul R. Bown, Chengshan Wang, and Xi Chen

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Short summary
We developed a new global database of microscopic fossil algae, known as calcareous nannoplankton, from Cretaceous ocean sediments to improve the understanding of ancient oceans and climate change. By integrating data from numerous published studies and standardising species names and ages, we created the Uneptune database with about 175 000 fossil records. Hosted on the Nannotax website, it provides visualisation tools that help scientists explore global marine ecosystems during the Cretaceous.
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