RT Journal Article T1 Estructuras bioerosivas de anélidos poliquetos (Serpulidae) en el Neógeno superior del Sur de la Península Ibérica T1 Bioerosive structures of polychaete annelids (Serpulidae) from the Upper Neogene of the South Iberian Peninsula A1 Santos, Ana Alexandra Guerreiro dos A1 Mayoral Alfaro, Eduardo A1 Muñiz Guinea, Fernando A1 Vera Peláez, José L. A1 Lozano Francisco, María C. AB New superficial etching traces corresponding to annelids of the family Serpulidae are described. These traces present an elongated, sinuous and/or spiralated pathway in a plan view. They consist in a very shallow central channel flanked by a lateral zone that can exhibit either faint, spread, oblique grooves or perpendicular, dense lines. The external part of this zone shows normally, a very narrow margin. The flanks of the traces are nearly parallel in the proximal part and clearly divergent in the opposite end PB Sociedad Geológica de España YR 2002 FD 2002 LK http://hdl.handle.net/10272/9106 UL http://hdl.handle.net/10272/9106 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026