Abstract The Late Ordovician (Katian-Hirnantian) through earliest Silurian (Rhuddanian)
interval was a time of varying climate and sea level, marked by a peak glacial episode in the …

The diversification of animals during the Cambrian Period is one of the most significant
evolutionary events in Earth's history. However, the sequence of events leading to the origin …

Abstract The Cambrian 'Explosion', located by many authors between 540 and 520 million
years ago (Ma), is considered to be an abrupt appearance in the fossil record of most animal …

The greatest relative changes in marine biodiversity accumulation occurred during the Early
Paleozoic. The precision of temporal constraints on these changes is crude, hampering our …

The Ordovician biodiversification is considered one of the most significant radiations in the
marine ecosystems of the entire Phanerozoic. Originally recognized as the 'Ordovician …

The end-Ordovician mass extinction (EOME) is widely interpreted as consisting of two
pulses associated with the onset and demise of the Gondwana glaciation, respectively, with …

Silurian is a period with the shortest duration in Phanerozoic except for the Neogene and
Quaternary. It represents an important and unique interval when the biotic diversity …

Abstract The Ordovician-Silurian (OS) transition coincided with significant environmental
and biological changes. In South China, the Yangtze Platform experienced both global and …

Graptoloid evolutionary dynamics show a marked contrast from the Ordovician to the
Silurian. Subdued extinction and origination rates during the Ordovician give way, during the …

The present study on bulk carbonate 87Sr/86Sr stratigraphy represents a companion work to
earlier research that presented a conodont apatite-based Ordovician seawater 87Sr/86Sr …