Predominantly late Carnian (Tuvalian, but covers late Carnian to early Norian and continues into late Norain and Rhaetian. From Flügel pers. comm.The Late Carnian to Early Norian part of the reef sequence consists of (a) biodetrital limestones with Tubiphytes and internal breccias, overlain by (b) a high-diverse coral-sponge reef limestones, followed by (c) sponge-coral reef limestones, (d) a breccia horizont, and (e) a coral reef limestone with dendroid corals (Retiophyllia) and abundant solenoporacean red algae. Diversity is high in the intervals b and c but decreases in interval e. Common fossils are sphinctozoids, inozoids and chaetetids (Senowbari-Daryan and Schäfer, 1983), corals (Turnsek and Senowbari-Daryan, 1994), algae (Schäfer and Senowbari-Daryan, 1982, Angiolini and others, 1992), microproblematica and foraminifera. Sphinctozoid sponges and scleractinian corals correspond to taxa known from Carnian reefs of the Alps. In contrast to the Alpine Carnian localities, corals seem to be more abundant in Hydra.