Enhanced nitrogen fixation in the immediate aftermath of the latest Permian marine mass extinction

G Luo, Y Wang, TJ Algeo, LR Kump, X Bai… - …, 2011 - pubs.geoscienceworld.org
The carbon (δ13Corg) and nitrogen (δ15N) isotopic compositions of bulk organic matter
were analyzed in two high-resolution Permian-Triassic transitional sections containing …

Did sulfate availability facilitate the evolutionary expansion of chlorophyll a+c phytoplankton in the oceans?

S Ratti, AH Knoll, M Giordano - Geobiology, 2011 - Wiley Online Library
Abstract During the Mesozoic Era, dinoflagellates, coccolithophorids and diatoms became
prominent primary producers in the oceans, succeeding an earlier biota in which green …

Stepwise and large-magnitude negative shift in δ13Ccarb preceded the main marine mass extinction of the Permian–Triassic crisis interval

G Luo, Y Wang, H Yang, TJ Algeo, LR Kump… - Palaeogeography …, 2011 - Elsevier
Large perturbations to the global carbon cycle occurred during the Permian–Triassic
boundary mass extinction, the largest extinction event of the Phanerozoic Eon (542Ma to …