Following the Cambrian Explosion and the appearance in the fossil record of most animal
phyla associated with a range of new body plans, the Ordovician and Silurian periods …

Recent analyses of Sepkoski's genus-level compendium show that only three events form a
statistically separate class of high extinction intensities when only post-Early Ordovician …

Variations in the 13C/12C value of total dissolved inorganic carbon (DIC) in the world's
oceans through time have been documented through stratigraphic study of marine …

The Ediacaran Period was a critical time in the history of life and Earth. Understanding the
complex interactions between geological and biological events during this interval requires …

Changes in marine primary productivity following the latest Permian mass extinction (LPME)
have been debated at length, with little resolution to date owing to a paucity of quantitative …

Cramer, BD, Brett, CE, Melchin, MJ, Männik, P., Kleffner, MA, McLaughlin, PI, Loydell, DK,
Munnecke, A., Jeppsson, L., Corradini, C., Brunton, FR & Saltzman, MR 2011: Revised …

Widespread marine anoxia is hypothesized as the trigger for the second pulse of the Late
Ordovician (Hirnantian) mass extinction based on lithologic and geochemical proxies that …

A new high-resolution Paleozoic δ13Ccarb curve from the Great Basin shows an amount of
variation that appears transitional between the highly unsettled Neoproterozoic and the …

The end-Ordovician was an enigmatic interval in the Phanerozoic, known for massive
glaciation potentially at elevated CO2 levels, biogeochemical cycle disruptions recorded as …

We present a δ 13C record from the Anti-Atlas mountains of Morocco and place it in the
context of a detailed regional tectonostratigraphy. We place the litho-and chemostratigraphic …