Tag Archive for: Badenian

The family Architectonicidae J. E. Gray, 1850 (Gastropoda: Heterobranchia) from the lower Serravallian of Rohožník (Vienna Basin, Central Paratethys): new evidence and description of a new species

Author: R. Biskupič
Basteria, 88 (1): 43-53Published:

Abstract

This work presents new records of the Architectonicidae from the middle Miocene of the Central Paratethys Sea. The shells were obtained from the lower Serravallian (upper Badenian) marine sediments revealed at the fossiliferous site Rohožník – Konopiská, situated in the eastern Vienna Basin (Slovakia). The herein surveyed architectonicids comprise two species, of which Nipteraxis transmontanus spec. nov. is established as new, and Spirolaxis cornicula (O. Boettger, 1902) is recorded for the first time from Slovakia, representing the first occurrence of the species in the upper Badenian of the Central Paratethys realm. Paleoecology of both taxa is shortly commented on and compared with the habitat preferences of similar species. In the benthic assemblages at Konopiská, the architectonicids were associated with ahermatypic scleractinian corals, which most probably represented their potential hosts.

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Download articleArtikel The family Architectonicidae J. E. Gray, 1850 (Gastropoda: Heterobranchia) from the lower Serravallian of Rohožník (Vienna Basin, Central Paratethys): new evidence and description of a new species

A new species of Nitidiclavus (Neogastropoda: Drilliidae) from the Miocene Paratethys and an overview of the paleoecology and distribution of related species in the Cainozoic of Europe

Author: R. Biskupič
Basteria, 85 (2): 163-176Published:

Abstract

A new Paratethyan species of the middle Miocene (Serravallian) conoidean gastropod of the family Drilliidae Olsson, 1964 is described. Rare finds of Nitidiclavus senesi spec. nov. have been obtained from the marine sediments exposed in the eastern marginal part of the Vienna Basin in Slovakia (Western Carpathians). The shells were collected from the calcareous clays of the upper Badenian Studienka Formation exposed in the former clay pit of the locality Rohožník-Konopiská. Under UV light, the shell surface of some specimens had residual colour patterns, which repre­sent the first known evidence of these exceptional features for the genus Nitidiclavus. The species from Rohožník is also compared with other similar taxa from the European Cainozoic. As suggested by the sedimentology at the studied locality, N. senesi spec. nov. lived on a soft, muddy bottom in the circalittoral zone, in a habitat influenced by lowered water dynamics and occasional hypoxia. Preferred paleo­ecological conditions and geographic and stratigraphic distribution of Nitidiclavus in the North-East Atlantic and circum-Mediterranean regions are briefly discussed and summarized.

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Download articleArtikel A new species of <em>Nitidiclavus</em> (Neogastropoda: Drilliidae) from the Miocene Paratethys and an overview of the paleoecology and distribution of related species in the Cainozoic of Europe

Rotatrigonostoma reinholdkunzi, gen. nov., spec. nov., an elusive trigonostomid group unveiled (Gastropoda, Cancellariidae)

Authors: B.M. Landau, A.E. Breitenberger, M. Harzhauser
Basteria, 84 (4/6): 135-140Published:

Abstract

Based on newly collected material, we describe a new spe­cies belonging to an unusual group of planispiral trigon­ostomid species, including also Pseudomalaxis boettgeri Cossmann, 1916, and erect the genus Rotatrigonostoma gen. nov. for these species.

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Download articleArtikel <em>Rotatrigonostoma</em> reinholdkunzi, gen. nov., spec. nov., an elusive trigonostomid group unveiled (Gastropoda, Cancellariidae)