Dr. Nagy I. Zoltán szerk.: Fragmenta Mineralogica Et Palaentologica 4. 1973. (Budapest, 1973)

The comprehensive and authoriative work on the geology of Hungary (VADÁSZ, I960, ed. II) also considered it Cenomanian. This assertion reappeared in several other work of a similar nature (e.g. TRUNKÓ, 1969). J. KNAUER has recently contested (1966, 1969) the Cenomanian, but he also mentioned that the problem will be satisfactorily decided by the evaluation of the céphalopode. G. SCHOLZ described a new Lechites species (1971) and revided Hauer'

s Anisoceras (A.) nanaense (1972). He defined the layers as Vraconnian, designating the Substuderi Zone as the age of the fossils. I.Z. NAGY published a faunal work of 44 items from these layers in 1971.The described cephalopod fauna is deposited in the Paleontological Department of the Hungarian Natural History Museum. Having compared it with the faunes from St. Croix, and the French and English Upper Albian faunas, he stated that the Bakony fauna is tipically Vraconnian. The evaluation of the fauna is as follows. Comparison of the faunas 0. RENZ (1968) identified 1280 ammonites from the Vraconnian type-profile. This fossil material represented 7 superfamilies, with 153 species and subspecies. The 410 specimens of the Bakony fauna represents largely one-third of the above type-material . The participation of the Phyllocerataceae is quite low in both localities. This superf

amily is 1.5 % of the St. Croix fauna, with 0.24 % in the Bakony. The situation is nearly the reserve in the case of the Lytocerataceae, their members occurring in 0.45 % at St. Croix. As a related group, the Tetragonitaceae represented them in 2.44 % in the Bakony. The similarity of proportions concerning the superfamily Turri-