Triassic foraminifer assemblages in the Choč nappe of the Tatra Mts

Abstract

Stratigraphically important foraminifer assemblages were found in limestones of the Choč nappe in the Tatra Mts. The assemblage from Wielkie Koryciska comprising Ammobaculites cf. radstadtensis Kristan-Tollmann, Calcitornella? sp., Hemigordius? chialingchiangensis (Ho), Trochammina almtalensi  Koehn-Zaninetti, Turritelle mesotriasica Koehn-Zaninetti, indicates Upper Anisian (Illyrian) age. The assemblage from Małe Koryciska, comprising Involutina communis (Kiristan), I. tenuis (Kristan), I. impressa (Kristan-Tollmann), I. gaschei (Koehn-Zaninetti & Bronnimann), Planiinvoluta deflexa Leischner, Trocholina crassa Kristan, T. permodiscoides Oberhauser, and Triasina hantkeni Majzon, indicates Upper Rhaetian age.