This paper provides the first record of isolated foraminiferal assemblages from the
continuous Aalenian–lower Bajocian succession from the pelagic region of the Neotethys.
The studied Tűzkövesárok section B of Bakonycsernye (Hungary) has been well dated
by ammonites and consists of Ammonitico Rosso type limestones. The foraminiferal fauna
extracted by glacial acetic acid yielded 49 benthic taxa (species and subspecies);
protoglobigerinids also occurred. Most specimens belonged to the suborder Spirillinina,
followed by the suborder Lagenina and Rotaliina; agglutinated forms were subordinate
and miliolids were absent. The majority of the species have wide stratigraphic ranges;
moreover, the distributions of 11 species changed based on their appearances in this
section. Nevertheless, the Aalenian and Bajocian parts of the section could be distinguished
based upon the stratigraphic distributions of some species.