The evolution, radiation and biogeography of early spiriferid brachiopods

WA Museum Records and Supplements | Updated 9 years ago

Abstract - Spiriferid brachiopods originated in South-East Asia during the Late Ordovician and subsequently became geographically widespread during the Silurian. This study deals with the ways this took place, the routes taken during the expansion of this group and the implications to palaeogeography. During the Silurian, two peaks of diversification are recognised. The principal evolutionary trends evident within different lineages are outlined.