ArticleiScience2025
Eukaryotes expansion into non-marine habitats prohibited by nitrogen limitation during the mid-Proterozoic.
Article in iScience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Persistently anoxic conditions and nutrient limitations in the mid-Proterozoic have been invoked to explain the delayed evolution and expansion of eukaryotes. However, limited information is so far available about nutrient availability in nonmarine habitats. To fill this knowledge gap, we conducted a multi-proxy study of Statherian strata from the Dagushi, Bingmagou, Baicaoping, and Puyu formations in the Xiong'er Basin, southern margin of the North China Craton (NCC). This set of rocks offers a rare opportunity to study nutrient availability along a gradient from nonmarine to marine conditions in the mid-Proterozoic. Our δ
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