RT Conference Proceedings T1 Distinction between abrasion furrows and infill channels in ammonite internal moulds. A1 Fernández López, Sixto Rafael YR 2005 FD 2005 LK https://hdl.handle.net/20.500.14352/53982 UL https://hdl.handle.net/20.500.14352/53982 LA eng DS Docta Complutense RD 9 abr 2025