Conodonts across the Permian-Triassic boundary in the Bukk Mountains (NE Hungary)

摘要

The results of micropaleontological studies, especially of conodonts, across the Permian-Triassic (P-T) bound-ary interval in the Balvany-North, Balvany-East and Gerennavar sections of the Bukk Mountains (NE Hungary) arepresented. Conodont zones for the boundary interval have been identified on the basis of biostratigraphic data forconodont taxa (Hindeodus parvus, H. praeparvus, Hindeodus sp., Isarcicella cf. prisca, Hindeodus/Isarcicella sp.) andthe FOD of H. parvus. The praeparvus Zone possibly the Late praeparvus Zone (uppermost part of Changhsingian, LatePermian) in the Nagyvisnyo Limestone, inclusive of the 'Boundary Shale Bed', and the parvus Zone (earliest Induan,Early Triassic) in the Gerennavar Limestone are discriminated.