In this chapter, starting with a brief review of the research history and current status in the
studies of the Ordovician chronostratigraphy in China, the subdivision of the Ordovician …

This paper proposes a global review of Hirnantian event stratigraphy. The Hirnantian GSSP
in south China is tentatively correlated with latest Ordovician strata from the peri …

The temporal link between large igneous province (LIP) eruptions and at least half of the
major extinctions of the Phanerozoic implies that large scale volcanism is the main driver of …

The extensive work carried out during more than a decade by the International
Subcommission on Ordovician Stratigraphy has resulted in a new global classification of the …

The 'Great Ordovician Biodiversification Event'(GOBE) saw a spectacular increase in marine
biodiversity at all taxonomic levels largely within the phyla established much earlier during …

The timing and causes of the transition to an icehouse climate in the Late Ordovician are
controversial. Results of an integrated δ13C and sequence stratigraphic analysis in Nevada …

Abstract The Global boundary Stratotype Section and Point (GSSP) for the base of the
Hirnantian Stage (the uppermost of the Ordovician System) is defined at a point 0.39 m …

Profound changes in the biodiversity and biocomplexity of marine life occurred during the
early to mid-Ordovician through an interval of some 25 Myr. The planet's seascapes were …

The Early Palaeozoic phytoplankton (acritarch) radiation paralleled a long-term increase in
sea level between the Early Cambrian and the Late Ordovician. In the Late Cambrian, after …

We obtained 453.2±1.8 Ma and 449.4±1.8 Ma (2 {sigma}) laser step-heating 40Ar/39Ar
plateau ages for phengite from quartzite mylonites from the blueschist-facies Ondor Sum …