Abstract: The Toarcian–Aalenian Ammonoidea fauna of the Gerecse Mts belongs to the Mediterranean Province of the Mediterranean–Caucasian Realm. In this paper the Hammatoceratinae, represented by 7 genera (Geczyceras, Crestaites, Hammatoceras, Bredyia, Planammatoceras, Accardia, Pseudaptetoceras) and 31 species, are described and figured, and their stratigraphic distribution is recorded. Three new species: Geczyceras martinezae n. sp., Geczyceras galaczi n. sp., and Crestaites szentei n. sp. are introduced. Taxonomic problems of the subfamily are briefly discussed; faunas of various localities of the NW European and Mediterranean Provinces are compared.Keywords:
Author(s): Abadjiev, S.
Title: Toarcian–Aalenian Hammatoceratinae (Ammonitina) from the Gerecse Mts(NE Transdanubian Range, Hungary)
Hungary, Gerecse Mts, Toarcian, Jurassic, Hammatoceratinae, Ammonitina, AalenianSubject:
palaeontologyJournal: Fragmenta Palaeontologica HungaricaJournal abbreviation: Fragm. Palaeont. Hung.ISSN: 1586-930XPublisher: Hungarian Natural History Museum, BudapestEditor(s): ,