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![](./images/clear.gif) 1.- AUTHIGENIC GROWTH OF WHISKER-LIKE FIBROUS SERICITE INTO DETRITAL QUARTZ;
1982
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![](./images/clear.gif) 2.- NEUROPTERIS OBTUSA, A RARE BUT WIDESPREAD LATE CARBONIFEROUS PTERIDOSPERM
PALAEONTOLOGICAL ASSOCIATION; LONDON; GBR; UNITED KINGDOM, 1998
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![](./images/clear.gif) 3.- NEW DISCOVERIES OF XENACANTH SHARKS FROM THE LATE CARBONIFEROUS OF SPAIN (PUERTOLLANO BASIN) AND EARLY PERMIAN OF GERMANY (SAAR-NAHE BASIN); IMPLICATIONS FOR THE PHYLOGENY OF XENACANTHIFORM AND ANACANTHOUS SHARKS
E. SCHWEIZERBART'SCHE VERLAGSBUCHHANDLUNG; STUTTGART; DEU; FEDERAL REPUBLIC OF GERMANY, 1997
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