“The Late Permian mass extinction is the largest mass extinction of whole geological history, followed by a prolonged life recovery expending the early Triassic. To better understand the recovery pattern of primary productivity through Permo-Triassic intervals and its longer-term changes in early Triassic, we applied biomarkers to reveal the community evolutions of marine primary producers. Our results indicate a possible rapid recovery of eukaryotic primary producers after the extinction during Griesbachian-Dienerian.” presented in EarthDoc