@article{10272/12416,
year = {2016},
url = {http://hdl.handle.net/10272/12416},
abstract = {Fossil associations from the middle and upper Eocene (Bartonian and Priabonian) sedimentary succession of the Pamplona Basin are described.
This succession was accumulated in the western part of the South Pyrenean peripheral foreland basin and extends from deep-marine
turbiditic (Ezkaba Sandstone Formation) to deltaic (Pamplona Marl, Ardanatz Sandstone and Ilundain Marl formations) and marginal marine
deposits (Gendulain Formation). The micropalaeontological content is high. It is dominated by foraminifera, and common ostracods and
other microfossils are also present. The fossil ichnoasssemblages include at least 23 ichnogenera and 28 ichnospecies indicative of Nereites,
Cruziana, and ?Scoyenia-Mermia ichnofacies. Body macrofossils of about 80 taxa corresponding to macroforaminifera, sponges, corals,
bryozoans, brachiopods, annelids, molluscs, arthropods, echinoderms and vertebrates have been identified. Both the number of ichnotaxa
and of species (e. g. bryozoans, molluscs and condrichthyans) may be considerably higher. Body fossil assemblages are comparable to
those from the Eocene of the Nord Pyrenean area (Basque Coast), and also to those from the Eocene of the west-central and eastern part
of South Pyrenean area (Aragon and Catalonia). At the European scale, the molluscs assemblages seem endemic from the Pyrenean area,
although several Tethyan (Italy and Alps) and Northern elements (Paris Basin and Normandy) have been recorded. Palaeontological data
of studied sedimentary units fit well with the shallowing process that throughout the middle and late Eocene occurs in the area, according
to the sedimentological and stratigraphical data.},
abstract = {Se describen las asociaciones fósiles del Eoceno medio y superior (Bartoniense y Priaboniense) de la sucesión sedimentaria de la Cuenca de Pamplona.
Esta sucesión se acumuló en la parte oeste de la Cuenca de antepaís periférica surpirenaica y comprende desde turbiditas marinas profundas
(Formación Areniscas de Ezkaba) hasta depósitos deltaicos (Formaciones Margas de Pamplona, Areniscas de Ardanatz y Margas de Ilundain) y marinos
marginales (Formación Gendulain). El contenido micropaleontológico es alto y está dominado por los foraminíferos. Los fósiles de ostrácodos y otros
organismos son también abundantes. Las asociaciones de icnofósiles incluyen al menos 23 icnogéneros y 28 ichnoespecies, indicativas de las icnofacies
de Nereites, Cruziana, y ?Scoyenia-Mermia. Se han identificado fósiles corporales de unos 80 taxones, correspondientes a macroforaminíferos,
esponjas, corales, briozoos, braquiópodos, anélidos, moluscos, artrópodos, equinodermos y vertebrados. El número de icnotaxones y de especies (p. e.
briozoos, moluscos gasterópodos, bivalvos y peces condríctios) puede ser considerablemente mayor. Las asociaciones de fósiles corporales son comparables
a las del Eoceno del Área norpirenaica (Costa vasca) y de las partes central y este del Área surpirenaica (Aragón y Cataluña). A escala europea,
la asociación de moluscos parece endémica del Área pirenaica, aunque contiene elementos del Tetis (Italia y Alpes) y de las cuencas del norte (Cuenca
de París y Normandía). El contenido paleontológico de las unidades sedimentarias analizadas es coherente con el proceso de somerización que tiene
lugar a lo largo del Eoceno medio y tardío, de acuerdo con lo que indican los datos sedimentológicos y estratigráficos.},
organization = {Comments by Dr. Kai Ingemann Schnetler and an anonymous reviewer considerably improved the manuscript. Financial support to H.A., A.Ba., A.Be., I. D.-M., J.E. and X.P.-S. was provided by the Project CGL2013-47521-P (Ministerio de Economia y Competitividad, Servicio de Estado de Investigacion, Desarrollo e Innovacion, MINECO, Spain), the European Regional Development Fund/Fondo Europeo de Desarrollo Regional (ERDF/FEDER), and the research group IT-834-13 (Eusko Jaurlaritza/Gobierno Vasco, EJ/GV). Research work of I.D.-M. was supported by a postdoctoral grant provided by the Ministerio de Ciencia, Tecnologia e Innovacion Productiva, Consejo Nacional de Investigaciones Cientificas y Tecnicas, Argentina. Financial support to F.J.R.-T. was provided by the Project CGL2012-33281 (Secretaria de Estado de I+D+I, MINECO, Spain), and the research group RNM-178 (Junta de Andalucia). A.P. and S.O. were funded by project CGL 2011-23770 (MINECO) and the research group IT-215-07 (EJ/GV).},
publisher = {Universidad Complutense de Madrid},
keywords = {Fossil associations},
keywords = {Paleogene},
keywords = {Turbidites},
keywords = {Delta},
keywords = {Shallow-marine},
keywords = {South Pyrenean basin},
keywords = {Asociaciones fósiles},
keywords = {Paleógeno},
keywords = {Turbiditas},
keywords = {Delta},
keywords = {Marino somero},
keywords = {Cuenca Surpirenaica},
title = {Fossil associations from the middle and upper Eocene strata of the Pamplona Basin and surrounding areas (Navarre, western Pyrenees)},
doi = {/10.5209/rev_JIGE.2016.v42.n1.51601},
author = {Astibia, H. and Tosquella Angrill, Josep},
}