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![](./images/clear.gif) 1.- ON THE MACROEVOLUTION OF EOSPIRIFER SCHUCHERT, 1913 (SPIRIFERIDA, BRACHIOPODA)
INSTITUTO GEOLOGICO DE ESPAÑA; MADRID; ESP, 2011
ORDOVICIAN OF THE WORLS
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![](./images/clear.gif) 2.- Phosphate oxygen isotope ratio proxy for specific microbial activity in marine sediments (Peru margin)
American Geophysical Union; Washington, DC; USA; United States, 2005
AGU 2005 fall meeting
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