
Latest Toarcian-earliest Bajocian (Jurassic) Grammoceratinae (Hildoceratidae, Ammonitina) of the western Tethys: Their palaeobiogeographic and phylogenetic significance
Keywords: آمونیتینا; Grammoceratinae; Ammonitina; Jurassic; Western Tethys; Taxonomy; Palaeobiogeography