Tag Archive for: Miocene

Liralithes, a new genus of Clavalithidae (Neogastropoda) from the Indo-West Pacific, with comments on the late evolution of apertural lirae

Authors: G.J. Vermeij, J.G.M. Raven, M. Harzhauser
Basteria, 88 (1): 38-42Published:

Abstract

In the Clavilithidae Vermeij & M. A. Snyder, 2018, here raised from subfamily to family status in Neogastropoda, we name Liralithes gen. nov. (type species: Fusus tjidamarensis K. Martin, 1879) from the Early Miocene to Early Pleistocene of the Indo-Malayan region. It differs from other clavilithids by having lirae on the inner side of the outer lip and by having columellar folds. Lirae evolved very late in this family as well as in Muricidae, Fasciolariidae (Fusininae), Melongenidae, and Dolicholatiridae. In Dolicholatiridae, the genus Latirofusus Cossmann, 1889 (lirae absent) from the Paleocene and Eocene differs from the post-Eocene Dolicholatirus Bellardi, 1884 (lirae present).

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Download articleArtikel <em>Liralithes</em>, a new genus of Clavalithidae (Neogastropoda) from the Indo-West Pacific, with comments on the late evolution of apertural lirae

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

New Muricidae (Mollusca, Gastropoda) from the Miocene of Java (Indonesia)

Authors: D. Merle, B.M. Landau, A.E. Breitenberger
Basteria, 85 (1): 21-33Published:

Abstract

A well-preserved muricid gastropod fauna is described from Wonosari, Gunung Kidul Regency, Special Region of Yogyakarta, Java, Indonesia. In the Muricinae subfamily, six species of Chicoreus are recorded, of which three species and one subspecies are new: C. (Triplex) javanus spec. nov., C. (T.) solidus spec. nov., C. (T.) martini spec. nov., C. (T.) altenai dekkersi subspec. nov., C. (T.) juttingae (Beets, 1841) and C. (Rhizophorimurex) cf. capucinus (Lamarck, 1822). A new species of Chicomurex is described: C. parvus spec. nov. Vokesimurex wanneri (Martin, 1916) is also recorded and a lectotype is designated herein for this species previously recorded from the early Miocene of Central Java. In the subfamily Aspellinae, Dermomurex (s.s.) wanneri nom. nov. is proposed for Murex acuticostatus Wanner & Hahn, 1935 (not Murex acuticostatus Gümbel, 1861), originally described from the early-middle Miocene of Central Java (Indonesia) and also found in Wonosari.

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Download articleArtikel New Muricidae (Mollusca, Gastropoda) from the Miocene of Java (Indonesia)

Semiricinula preturbinoides spec. nov., a new species from the Miocene of Java (Gastropoda: Muricidae)

Authors: B.M. Landau, J.G.M. Raven, A.E. Breitenberger, A.M. Dekkers
Basteria, 84 (4/6): 131-134Published:

Abstract

A new species of Semiricinula, S. preturbinoides spec. nov. is described from the Langhian Middle Miocene of Java, Indonesia, as part of a series describing the assemblage found at Wonosari, and the presence of Taurasia striata (de Blainville, 1832) is recorded from these same beds.

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Download articleArtikel <em>Semiricinula preturbinoides</em> spec. nov., a new species from the Miocene of Java (Gastropoda: Muricidae)

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)