First record of Anisian deposits in the Betic External Zone of southern Spain and its paleogeographical implications

In the External Zone of Betic Cordillera (S Spain), upper Muschelkalk (Ladinian) facies have been known for decades; however, so far there is no stratigraphic record Anisian deposits. present study, new biostratigraphic data from a carbonate succession in easternmost Subbetic domain reveal Pelsonian-Illyrian (Anisian) age. The nautiloids Germanonautilus salinarius and saharonicus are documented first time Iberian Peninsula, together with brachiopod Tetractinella trigonella bivalves Neoschizodus orbicularis Myophoria vulgaris they represent marker fossils deposits previously described many other basins, both Germanic Alpine realms. co-occurrence nautiloid G. bivalve Gervillia joleaudi at top studied serves as correlation tool faunal migration event Sephardic towards domain. palynomorph assemblage, including monosaccate pollen grain Cristianisporites triangulatus, provides further evidence late An integrated study fossil assemblages sedimentary reveals tidal very shallow-marine environments that characterize an extensive epicontinental platform western Tethys along paleo-margin Massif. Two thin shale intervals two distinct transgressive phases, correlative to Pelsonian maximum-flooding zone recorded European basins. findings contribute ongoing paleogeographic reconstruction settings which developed during Middle Triassic Peri-Tethyan realm.