RT Journal Article T1 Helminthopsis abeli Ksiazkiewicz, un icnofósil del Ordovicico Superior de la Zona Centroibérica española T1 Helminthopsis abeli Ksiazkiewicz, an ichnofossil from the Upper Ordovician of the Central Iberian Zone (Spain) A1 Aceñolaza, G. F. A1 Gutiérrez Marco, Juan Carlos AB A typical example of the Helminthopsis ichnogulld formed by deep deposit-feeder tiers is presented from an Upper Ordovician shallow marine succession in Central Spain. The monospecific ichnoassociation is composed by Helminthopsis abeli Ksiazkiewicz, massively recorded from a single bed within a sillciclastic alternation with some storm influence ofCaradoc age, in the lower part of the "Bancos Mixtos" Formation, south of the town of Torrenueva (Province of Ciudad Real) PB Sociedad Geológica de España YR 1997 FD 1997 LK http://hdl.handle.net/10272/10240 UL http://hdl.handle.net/10272/10240 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026