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First record of the late Campanian heteromorph ammonite Nostoceras hyatti from the Alpine Cretaceous (Grunbach, Gosau Group, Lower Austria)

Summesberger H., Machalski M., Wagreich M.

Acta Geologica Polonica

2007

Vol. 57, no. 4

443-451

The heteromorph ammonite Nostoceras (Nostoceras) hyatti is described for the first time from the Piesting Formation (Gosau Group; Upper retaceous) at Grunbach along the eastern margin of the Northern Calcareous Alps, Lower Austria. This record significantly extends the geographic range of this late Campanian marker species; it was not previously known from the Alpine Cretaceous. Moreover, it corroborates earlier age assignments as late Campanian of the (lower) part of the Piesting Formation. A matrix sample taken from the specimen studied has yielded taxa whose range covers zones CC20 to CC23, or UC 15[^tp] to UC18, of the standard nannofossil zonation.

Additional records of Late Cretaceous and Early Palaeogene echinoids from the Gschliefgraben (Ultrahelvetic, Upper Austria)

Kroh A., Jagt J., Wagreich M.

Acta Geologica Polonica

2004

Vol. 54, no. 4

551-571

Late Cretaceous and Early Palaeogene echinoid faunules collected in recent years from the surface of an active mudflow at the Gschliefgraben near Gmunden (east of the Traunsee, Upper Austria) are both fairly diverse and of considerable palaeobiogeographic interest. So far, only (Late) Campanian taxa have been described and illustrated. In the present paper, notes are presented on additional Campanian, Maastrichtian and Palaeogene taxa, namely Lampadocorys? estermanni sp.nov., Lampadocorys? sp.nov. 1, Lampadocorys? sp.nov. 2, Rispolia cf. subtrigonata (CATULLO), Seunaster cf. heberti (SEUNES), Echinocorys ancileformis MOSKVIN & SHIMANSKAYA, Echinocorys ex gr. fonticola ARNAUD, Ganbirretia? sp., Micraster aturicus HEBERT in SEUNES, Micraster corcolumbarium DESOR, Micraster stolleyi (LAMBERT in DE GROSSOUVRE), Pseudogibbaster? sp., and Coraster beneharnicus SEUNES.These species indicate a close relationship with the Tethyan areas of northern Spain and SW France, the Crimea, Georgia and the northern Caucasus, although a number of holasteroid and micrasterid taxa would appear to be more common and widely distributed in boreal settings (e.g., NW Europe).