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A new Concavinae (Cirripedia, Chesaconcavus) from the Late Burdigalian (Miocene) of Lower Bavaria (Germany)

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Abstract:

A new species of Concavinae, , is described from the Upper Burdigalian (Ottnangian) Upper Marine Molasse deposits of Lower Bavaria (Germany). This species is characterized by narrow scuta with truncate basiscutal angle and ridge for lateral depressor muscle extending from apex to base of lateral depressor muscle pit, and terga with short, truncate spur, and open spur furrow. It is the first found in Europe.

German
Eine neue Spezies der Concavinae, Chesaconcavus gurlarnensis, aus dem Oberen Burdigal (Ottnangium) der Oberen Meeres-Molasse in Niederbayern (Deutschland) wird beschrieben. Die Art besitzt schmale Scuta mit abgestutztem basiscutalem Winkel. Die Rippe für den lateralen Depressor-Muskel erstreckt sich vom Apex bis zur Basis des lateralen Depressor-Muskeleindrucks. Die Terga zeigen eine kurze, abgestutzte Rippe mit offener Rippen-Furche. Es handelt sich hierbei um den Erstnachweis der Gattung Chesaconcavus in Europa.

French
Description d'une nouvelle espèce de Concavinae, Chesaconcavus gurlarnensis, provenant de la molasse marine supérieur du Burdigalien supérieur (Ottnangien) de Basse-Bavière (Allemagne). Cette espèce présente d'étroits scuta à l'angle basi-scutal tronqué et à l'arête du muscle dépresseur latéral rayonnant de l'apex à la base de la cavité du muscle dépresseur latéral, ainsi que des terga à court éperon tronqué dont le sillon est ouvert. Il s'agit du premier Chesaconcavus trouvé en Europe.

Keywords: CRUSTACEA CIRRIPEDIA; GERMANY; LATE BURDIGALIAN; LOWER BAVARIA; MIOCENE; TAXONOMY; UPPER MARINE MOLASSE

Document Type: Research Article

DOI: https://doi.org/10.1127/0077-7749/2008/0248-0345

Publication date: 2008-06-01

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