RT Journal Article T1 Registro de Geyssantia (Ammonitina, passendorferiinae) en el Oxfordiense superior de la Sierra Norte de Mallorca T1 Record of Geyssantia (ammonitina, passendorferiinae,? from the Upper Oxfordian in the Sierra Norte of Mallorca A1 Caracuel, Jesús Esteban A1 Olóriz, F. AB The record of the Passendorferiinae genus Geyssantia is noticed from the Sierra Norte (Mallorca). This is the first published record of this genus in epioceanic ammonitico rosso facies. As mainly registered in the Iberian Chain, this rare record has been found in the Bimammatum Zone PB Sociedad Geológica de España YR 1996 FD 1996 LK http://hdl.handle.net/10272/11070 UL http://hdl.handle.net/10272/11070 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026