Les ammonites pliensbachiennes des nappes Lyciennes (Turquie méridionale). Description de faunes nouvelles, implications biostratigraphiques et paléobiogéographiques

This is the first description of Pliensbachian (Carixian and mainly Domerian) ammonite faunas from southern Turkey (Lycian Allochton, western Taurus). These faunas are from the Kısılka-Çorak unit (Kızılca locality, Tavas area) and from the Gümüslü unit (Ayıburnu Tepe and Kuru Dag localities). They consist of 32 species characterising seven biostratigraphic levels. Two new Carixian species are described: Lytoceras kisilcus nov. sp. and Fuciniceras lycius nov. sp. These Lycian faunas chiefly include Juraphyllitidae, Lytoceratoidea, Dactylioceratidae and Hildoceratidae. Conversely, Phylloceratidae are rather scarce. The faunas form a homogeneous assemblage of Mediterranean taxa clearly indicative of a South Tethyan paleobiogeographic affinity. The palaeobiogeographical analysis suggests for the Lycian Pliensbachian deposits a single area of sedimentation protected from oceanic influences by neritic barriers, possibly a basin between the Menderes and the Bey Dagları neritic platforms.