RT Journal Article T1 Precisiones sobre la edad, mediante ammonoideos y nautiloideos, de la Fm. Margas del Forcall en la subcuenca de Oliete (Cadena Ibérica, España) T1 Precisions on the age of the Margas del Forcall Fm in the Oliete sub-basin (NE Iberian Range, Spain) by means ofammonoids and nautiloids A1 Moreno, J. A. A1 Company, M. A1 Delanoy, G. A1 Grauges, A. A1 Martínez, G. A1 Salas, Ramón AB Ammonoids and nautiloids from Margas del Forcall Formation, located in the Oliete sub-basin (IberianChain), were studied. Taphonomic, sedimentologic and biostratigraphic analyses were carried out. Thefossil record of cephalopods is especially abundant in a layer made up of reddish limestone with elongatednodules that are usually covered by a ferruginous-manganese crust. These nodules are embedded in amicritc matrix where infaunal tiering is largely preserved. The biostratigraphic study has allowed recognizingHambrovi Subzone and proposing a new bioestratigraphic position for this stratigraphic interval YR 2007 FD 2007 LK http://hdl.handle.net/10272/8427 UL http://hdl.handle.net/10272/8427 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026