Bolton, Thomas E. <br/><br/>
Ordovician and Silurian tabulate corals Labyrinthites, Arcturia, Troedssonites, Multisolenia, and boreaster 

 - Ottawa, Ontario  Geological Survey of Canada  1965 
 - pp. 17-33  láms. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ORDOVICICO<br/>PALEONTOLOGÍA<br/>SILURICO<br/>TABULATA
<br/><br/><label>Subjects--Geographic Terms: </label><br/>CANADA