Türkiye Jeoloji Bülteni

Taxonomic Revision of the Lower Jurassic (Liassic) Phylloceratids of Northern Turkey (part II)

Abstract: The species representing the family Phylloceratidae in the Liassic rocks of northern Anatolia are hereplaced in four genera : Phylloceras Suess, Partschiceras Fucini, Hantkeniceras Kovacs, and CalMphylioceras Spath. Thespecies referred to Phylloceras are P.(Phylioceras) frondosum, P(P). lipoldi, P(P). hebertinum, P(P). meneghini,PCZetoceras) zetes, P(Z). pseudozetes, PCZ). bonarellii, P(Z). oenotrium* P(Z). lavizzarii, P(Z)?. anatolicum. Their systematic descriptions were given in the part I (*).CalMphylioceras is represented by a single species, C. bicicolae, in the Upper Sinemurian - Lower Pliensbachian rocks of the Bilecik, Amasya and Gümüşhane - Bayburt regions, in northern Anatolia. Previously reported speciesC. emeryi, C. alontinum, C. geyeri, C. bettonii are regarded synonyms of C. bicicolae. Partschiceras is represented bya single species, P. striatocostatum, and Hantkeniceras by three species, H. cf.hantkeni, H. pseudocalais, H. sp.