North Gondwana mid-Palaeozoic bioevent／biogeography in relation to crustal dynamics （Final report for IGCP 421）

IGCP 421—North Gondwana mid-Palaeozoic bioevent/biogeography patterns in relation to crustal dynamics—was directed towards analysis of bioevents (especially global extinctions and recoveries), major variation in biodiversity, and change in biogeographic differentiation along the North Gondwana continental margin during the mid-Palaeozoic. Incidental to this was integration of these data with the biofacies/lithofacies database for the region in pursuit of increased precision in stratigraphic alignments and improved palaeogeographic and palaeoclimatologic syntheses.