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![](./images/clear.gif) 1.- GRAPTOLITE SYNRHABDOSOMES; BIOLOGICAL OR TAPHONOMIC ENTITIES?
FRANKLIN AND MARSHALL COLLEGE, DEPARTMENT OF GEOLOGY; LANCASTER, PA; USA; UNITED STATES, 1998
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![](./images/clear.gif) 2.- THE STRATIGRAPHIC DISTRIBUTION OF GRAPTOLITES IN THE CLASSIC UPPER MIDDLE ORDOVICIAN UTICA SHALE OF NEW YORK STATE:AN EVOLUTIONARY SUCCESSION OR A RESPONSE TO RELATIVE SEA-LEVEL CHANGE?
1998
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