THE CONTRAST OF pHOSpHATIZED CYLINDRICAL AND TABULATE MICROFOSSILS FROM THE WENG'AN BIOTA IN GUIZHOU PROVINCE

The main interpretation of cylindrical and tabulate microfossils which preserved in Phosphatic sedimentary rocks of terminal Proterozoic in Guizhou province has been varied from miniature crinoid stems to extinct tabulates.Base on SEM studies of more than 50 specimens,,the author found these tube fossils are not uniform in configuration and structure,they may have different nascence,so the author propose that they might should be classified in morphological.