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RESEARCH PRODUCT

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The relevant information on the fossil record of the Neogene molluscs of the north of the Teruel Basin in the period between the years 1775-1998 is compiled and analyzed. First, the total number of different taxa mentioned in every paper is counted, second only the number of specific references is counted. The last references are divided into three categories called: new references, new species and repeated references. Apart from the information contained in every paper, the number of taxa contemplated, and the typology of the specific references, it is proposed a classification of the studies on neogene molluscs of this area in six stages: first (1775-1849), second (1849-1910), third (1910-1936), fourth (1936-1962), fifth (1962-1991) and sixth (1991-1998).