In the Jurassic period, the Early Toarcian oceanic anoxic event (about 183 million years ago) is associated with exceptionally high rates of organic-carbon burial, high palaeotemperatures and ...

New molecular markers for quantifying abundance and gene expression of widespread and often undetected marine N2 fixing symbionts of diatoms Linnéa M. V. Ström Philip Ley Eric A. Webb David A.