摘要：The ostracod valves irom Middle Ordovician limestones,the profile of Mójcza,Holy Cross Mts.,Poland,have been found to contain a new morphologic type of microbial borings. These are phosphate fillings of tunnels (9-13 µm in diameter) parallel to the valve surface,with bottle-like terminal swellings. They occur mainly in big and smooth ostracod valves.
其他摘要：W skorupkach malioraczk6w ordowickich z profilu M6jczy w G6rach Swigtokrzyskich stwierdzono obecnoSC dlugich,cienkich rurek,bgdqcych fosforanowymi wy4ci6lkami tuneli wykonanych przez mikroorganizmy borujqce. Sq to cienkie rurki o Srednicy 9-13 pm,r6wnoleg
