Fish otoliths from the Middle Eocene (Bartonian) of Yebra de Basa, province of Huesca, Spain
Brzobohaty, R.; Nolf, D. (2011). Fish otoliths from the Middle Eocene (Bartonian) of Yebra de Basa, province of Huesca, Spain. Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 81: 279-295
In: Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Aardwetenschappen = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Sciences de la Terre. KBIN: Brussel. ISSN 0374-6291
Otoliths collected in the basal part of the Pamplona Marl at Yebra de Basa allow reconstituting a teleost fauna of 31 taxa, including 18 nominal species. The association is dominated by a single species, Apogon dominans n. sp. (92 % of all otoliths; more than 5 000 specimens in the collection). This assemblage reflects a very shallow neritic environment and shows a similarity with otolith assemblages of the European Middle and Upper Eocene. The Yebra de Basa otolith fauna completes our data on the Middle and Late Eocene ichthyofaunas of the Pyrenean realm by providing a neritic Bartonian fauna, including six new species: Onuxodon yebraensis, Apogon dominans, "genus aff. Apogon" viaboadai, Mene iberica, Chaetodipterus steurbauti and Pardachirus izarrae.
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