The chronology of dinosaur oospecies in south-western Europe: Refinements from the Maastrichtian succession of the eastern Pyrenees

Vila, Bernat; Riera, V.; Bravo, Ana; Oms, Oriol; Vicens, Enric; Estrada, Rita; Galobart, Àngel

doi:10.1016/j.cretres.2011.01.009

Cited by 33 publications

(25 citation statements)

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“…This idea, originally proposed for the Aix Basin in Provence (France), has been successfully exported to the southern Pyrenees regions of Vallcebre and Coll de Nargó (Vila et al, 2011;Sellés et al, 2013). The oospecies assemblages (properly named oozones, see Sellés et al, 2013) are calibrated with magnetochrons and indicate restricted temporal ranges for the megaloolithid oospecies (Fig.…”

Section: Review and Update Of The Age Of Some Dinosaur Localitiesmentioning

confidence: 99%

“…In the case of El Mirador locality, Sellés et al (2013) assumed that it probably represents the last co-occurrence of these ootaxa in the Coll de Nargó area, and therefore the site may fall on the upper part of the C32n.1n and be early Maastrichtian in age. Finally, as noted by Vila et al (2011) and Sellés et al (2013), the egg-bearing sites of the upper part of the Coll Nargó and Vallcebre sections contain the oospecies M. siruguei right in contact with M. mamillare or M. baghensis (sites of Pinyes Est-5, Santa Eulàlia-3, El Codó-41, E-MUN06, J-BAR01; Appendix 1). This probably indicates that these sites fall around the C31r-C31n reversal, which is late Maastrichtian in age according to the recent age calibrations of Gradstein et al (2012).…”

Section: Review and Update Of The Age Of Some Dinosaur Localitiesmentioning

confidence: 99%

“…In the eastern part of the Tremp Basin, the Biscarri egg locality yielded the oospecies Megaloolithus siruguei and was originally referred to the late Campanian (López-Martínez et al, 2000). This oospecies is represented in Oozone 1, which is of late Campanian-early Maastrichtian age (Garcia and Vianey-Liaud, 2001), but also on its own in Oozone 2, of early Maastrichtian age (Garcia and VianeyLiaud, 2001;Vila et al, 2011). The new magnetostratigraphic correlations of lower Tremp Formation units in the Tremp Basin (Vila et al, 2012) indicate that the basal part of the formation is probably early Maastrichtian in age and thus the Biscarri locality (together with the Barranc de la Fonguera locality; Appendix 1) would be early Maastrichtian in age.…”

Section: Review and Update Of The Age Of Some Dinosaur Localitiesmentioning

confidence: 99%

“…The oospecies assemblages (properly named oozones, see Sellés et al, 2013) are calibrated with magnetochrons and indicate restricted temporal ranges for the megaloolithid oospecies (Fig. 2) (Garcia and Vianey-Liaud, 2001;Vila et al, 2011;Sellés et al, 2013).…”

Section: Review and Update Of The Age Of Some Dinosaur Localitiesmentioning

confidence: 99%

“…In the last decade, the profusion of new discoveries and the advances in magnetostratigraphy and biostratigraphy in the southern Pyrenees (López-Martínez et al, 2001;Oms et al, 2007;Pereda-Suberbiola et al, 2009;Riera et al, 2009;Prieto-Márquez et al, 2013;Vila et al, 2012Vila et al, , 2013 have allowed a more precise and robust correlation for these localities. Of special interest is the calibration of the succession of megaloolithid oospecies with the magnetostratigraphic scale (Garcia and Vianey-Liaud, 2001;Vila et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Re-evaluation of the age of some dinosaur localities from the southern Pyrenees by means of megaloolithid oospecies

Vila

Sellés

2015

Journal of Iberian Geology

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Since the beginning of the 20th Century the Upper Cretaceous continental and transitional marine deposits of the southern Pyrenees have produced more than 220 dinosaur fossil localities. New discoveries and advances in magnestostratigraphy and biostratigraphy provide a robust biostratigraphical framework for the latest Cretaceous dinosaur faunas in the region, although the age of some localities has remained uncertain. Here, we re-evaluate the age of some classic and new dinosaur fossil localities on the basis of the potential dating of megaloolithid oospecies and provide parataxonomic and age data for twenty-three localities with new megaloolithid egg fossils. Further, we review the nomenclature and probable synonymies of several of the most historically significant localities in the southern Pyrenees. With the new age assignments proposed for some significant localities (Basturs, Orcau-1, Els Nerets, Figuerola-2, Suterranya-1), we claim that in the southern Pyrenees a) the ankylosaurian dinosaurs survived beyond the early Maastrichtian-late Maastrichtian boundary and coexisted with hadrosauroids; b) the theropod record is scarce in the early Maastrichtian and the taxonomic diversity (richness) of theropods is notably higher in the late Maastrichtian; and c) the megaloolithid egg record assigned to sauropods is continuous through the entire Maaastrichtian but is scarce in the Upper Campanian.Keywords: dinosaurs, biostratigraphy, Late Cretaceous, Pyrenees, Megaloolithus Resumen Desde principio del siglo XX los depósitos continentales y de transición de los Pirineos meridionales han producido más de 220 localidades con fósiles de dinosaurios. Los nuevos descubrimientos y los avances en magnetostratigrafía y biostratigrafía han proporcionado un robusto esquema biostratigráfico de las faunas finicretácicas de dinosaurios en la región, a pesar de que la edad de algunas localidades permanecía incierta. En el presente trabajo reevaluamos la edad de algunas localidades clásicas y nuevas con fósiles de dinosaurios en base al potencial de datación de las oospecies megaloolítidas y aportamos datos parataxonómicos y de edad para veintitrés localidades con nuevos fósiles de huevos megaloolítidos. Además, revisamos la nomenclatura y las probables sinonimias de varias de las localidades históricamente más significativas de los Pirineos meridionales. Con las nuevas asignaciones de edad propuestas en algunas localidades significativas (Basturs, Orcau-1, Els Nerets, Figuerola-2, Suterranya-1) se establece que en los Pirineos meridionales a) los dinosaurios anquilosaurios sobrepasaron el límite entre el Maastrichtiense inferior y superior y coexistieron con los hadrosauroideos; b) el registro de terópodos es escaso en el Maastrichtiense inferior siendo remarcablemente más elevado en el Maastrichtiense superior; y c) el registro de huevos megaloolítidos asignados a saurópodos es continuo en todo el Maastrichtiense pero escaso en el Campaniense superior.

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Section: Review and Update Of The Age Of Some Dinosaur Localitiesmentioning

confidence: 99%