Early Toarcian (Jurassic) brachiopods from the Balearic Islands (Spain) and their paleobiogeographic context

Abstract The record of brachiopods in the Lower Toarcian Balearic Islands is described after a reassessment previous works and new samplings Tramuntana Range Mallorca. recognized species have been assimilated to assemblages Iberian Tenuicostatum Serpentinum biozones. Moreover, detailed comparison with other Western Tethys basins study dispersion brachiopod faunas relation Early Oceanic Anoxic Event, allow refine paleobiogeographic relationship brachiopods. They belong Euro-Boreal Province Biochron correspond the”Spanish Fauna” that emerged deep disruption took place at base Biochron. occurrence Prionorhynchia msougari Rousselle Zone Mallorca indicates that, within this last assemblage, there would be closer connection between region southern margin (Betic North African basins) than northern (Eastern Platform System Eastern Pyrenees). This conclusion consistent supposed position area Toarcian, on southeastern Iberia near Alboran Kabylian margins.