Estratigrafía y sedimentología del yacimiento de dinosaurios de La Peñuela (Berriasiense basal, subcuenca de Galve, Teruel)

Résumé

In 2017, the excavation of a new fossil site with dinosaur remains called La Peñuela (Camarillas, Teruel) began. The site is located in the upper part of the Aguilar del Alfambra Fm, on the northwestern margin of the Galve sub-basin (Maestrazgo Basin). The first stage of sedimentary filling of this sub-basin (latest Kimmeridgiense–Berriasian) includes the record of up to 500 m of a mixed carbonated-siliciclastic succession, deposited in coastal environments (Synrift Sequence 1; Aurell et al., 2019). Around the fossil site, the Aguilar del Alfambra (mid Tithonian-early Berriasian) overlies the low-angle unconfor- mity with the Fm Cedrillas, while its top is a major unconformity (boundary between the synrift sequences 1 and 2), which is in turn overlain by the lacustrine carbonates of Fm El Castellar (latest Hauterivian–earliest Barremian). The recorded carophyte assemblage in combination with strontium isotope data, allows to constrain the age of the La Peñuela fossil site as earliest Berriasian. The sedimentological data provided in this work have allowed to document in detail the sedimentary processes that favored the preservation of the dinosaur remains in the mixed tidal plain in which the deposit of the Aguilar del Alfambra Fm took place (Bádenas et al., 2016).