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Silurian trilobites from Maine
Published in Bulletin of The Museum of Comparative Zoology, in 1967, in volume 135, pages 447-482
Created: 2009-12-23, modified: 2011-06-21
John K. Strecker
Published in Nautilis, in 1933, in volume 46, pages 136-137
Created: 2013-09-28, modified: 2013-09-28