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标题：Additional note to new trace fossils produced by etching molluscs from the Upper Neogene of the southwestern Iberian Peninsula
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作者：Ana Santos ; Eduardo Mayoral ; Fernando Muniz 等
期刊名称：Acta geologica Polonica
印刷版ISSN：0001-5709
出版年度：2004
卷号：54
期号：1
页码：53-54
语种：English
出版社：Institute of Geology, University of Warsaw
摘要：The authors recently published in this journal(SANTOS & al. 2003) the description of a new trace fos-sil, Lacrimichnus SANTOS, MAYORAL & MUNIZ, 2003,ichnogen. nov. They ascribed this ichnotaxon to theencrusting activity of calyptracean gastropods(Crepidula LAMARCK 1799) and ostracean bivalves.However, they not exclude the possibility that the scarsmight have been made by Capulus or Calyptraea. In thecase of the Portuguese and Spanish material, the traceswere made by the Crepidula fossilized with the pectinidbivalves, particularly in view of the fact that no speci-mens of Calyptraea or Capulus were found. The occur-rence in the Atlantic realm (southwestern IberianPeninsula, Portugal and Spain) was dated as LateTortonian (Late Miocene) to Lower Pliocene; similartarces are also known fossil from the Holocene.