Santos, Ana Alexandra Guerreiro dosMayoral Alfaro, EduardoMuñiz Guinea, FernandoVera Peláez, José L.Lozano Francisco, María C.2014-11-052014-11-052002http://hdl.handle.net/10272/9106New 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 endspaAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/BioerosionPolychaete annelidsUpper NeogeneIberian Peninsulajournal articleopen access