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Pleistocene fish otoliths from the Mediterranean Basin: a synthesis
In: Géobios. Association Européenne de Paléontologie: Lyon. ISSN 0016-6995; e-ISSN 1777-5728, meer
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| Trefwoorden |
Geological time > Phanerozoic > Geological time > Cenozoic > Quaternary > Pleistocene
Geological time > Phanerozoic > Geological time > Cenozoic > Tertiary > Cenozoic > Neogene > Pliocene
Actinopterygii [WoRMS]; Sarcopterygii [WoRMS]
MED, Mediterranean [Marine Regions]
Marien/Kust |
| Author keywords |
otoliths; paleobiogeography; paleoceanography; Upper Pliocene;Pleistocene; Southern Italy |
| Auteurs | | Top |
- Girone, A.
- Nolf, D., meer
- Cappetta, H.
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| Abstract |
An overview of upper pPliocene and Pleistocene otolith assemblages is compiled on the basis of both literature data and newly collected material from several sections located mainly in southern Italy. One hundred and five taxa are listed. Additional comments are provided for taxa subject to discussion. The composition and affinities of the Mediterranean Pleistocene otolith associations (consisting mainly of deep sea fishes) is checked against the available data for Pre-Messinian, Pliocene, and Recent Mediterranean fishes. This analysis is based on the recorded nominal species, but some taxa that could be identified at the generic level only are also included when they are relevant from a biogeographic point of view. Some new data on Piacenzian (middle Pliocene) and Gelasian (upper Pliocene) otoliths are also provided because this time interval still constitutes a major gap in the knowledge of the stratigraphic range of Plio-Pleistocene fish taxa. The Pleistocene deepwater fish fauna of the Mediterranean shows a markedly more oceanic character than the present-day one, a tendency that was all ready observed from early Oligocene till Pliocene times. Starting from the late Piacenzian, an increasing number of Atlantic taxa progressively invaded the Mediterranean including several subpolar and temperate forms. This invasion became stronger in the Gelasian. From this period up to the middle and late Pleistocene, the Mediterranean deepwater fish fauna (mesopelagic and benthopelagic) is enriched by taxa which today are typical for the north Atlantic cold deep water. This faunal shift seems to be correlated with the evolution of the Plio-Pleistocene. Mediterranean paleoceanographic setting as well as with the global climatic deterioration. |
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