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Decouverte de deux nouveaux gisements de poissons fossiles messiniens dans le bassin de Nijar-Carboneras (Andalousie Orientale): Signification paleoecologique et implications paleogeographiques
Author(s) -
G. de la Chapelle,
Jean Gaudant
Publication year - 1987
Publication title -
estudios geológicos
Language(s) - Spanish
Resource type - Journals
SCImago Journal Rank - 0.276
H-Index - 27
eISSN - 1988-3250
pISSN - 0367-0449
DOI - 10.3989/egeol.87433-4598
Subject(s) - materials science
Two new fossil fish-Iocalities are reported from the Messinian of the Nijar-Carboneras basin (South Spain). That of Cortijo Ruil, South-West of Nijar, seems to take part in the evaporitic Messinian. It yields a marine, poorly diversified, fish-fauna which characterizes a shallow deposit sedimented relatively near the sea-shore. However, the occurrence of a Myctophid: Lampanyctus licatae (Sauvage) and of a Gonostomatid: Maurolicus muelleri (Gmelin) demonstrates that the Nijar-Carboneras basin was widely open to the sea, the depth of which probably sensibly exceeded 2.000 m. The post-evaporitic locality of Rambla de las Colmenas, westward of Gafares, has provided the species Aphanius crassicaudus (Agassiz), which characterizes the lagoonal Messinian environments of the Mediterranean area. Se han encontrado dos nuevos yacimientos de peces fósiles en el Mesiniense de la cuenca de Nijar-Carboneras (España meridional). El yacimiento del Cortijo Ruil, al Oeste de Nijar, parece pertenecer al Mesiniense evaporítico. Contiene una ictiofauna marina relativamente poco diversificada que caracteriza un depósito poco profundo, próximo a la orilla. De todos modos, la presencia de un Myctophidae: Lampanyctus licatae (Sauvage) y de un Gonostomatidae: Maurolicus muelleri (Gmelin) indica que la cuenca de Nijar se abria ampliamente a un mar cuya profundidad debía superar considerablemente los 2.000 m. El yacimiento postevaporítico de la Rambla de las Colmenas, al Oeste de Gafares, ha suministrado la especie Aphanius crassicaudus (Agassiz) que caracteriza los ambientes lagunares del Mesiniense del área mediterránea

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