RT Journal Article T1 Las pistas fósiles del Alcudiense superior en el anticlinal de Ibor. Consideraciones cronoestratigráficas T1 Trace fossils in the upper Alcudian of the Ibor anticline. Chronostratigraphic implications A1 García Hidalgo, J. F. AB New discovery of trace fossils in the Upper Alcudian of the Ibor anticline indicate that its supposed Precambrian age should be maintained but tentatively, due to the presence of scarce Lower Cambrian trace fossils although their distinction is problematic. Other fossil data, micro and macroflora, are also revised PB Sociedad Geológica de España YR 1992 FD 1992 LK http://hdl.handle.net/10272/14128 UL http://hdl.handle.net/10272/14128 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026