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Late appearances, 1980
Published in Entomologist's Record and Journal of Variation, in 1981, in volume 92, issue 11-12, pages 266
Created: 2016-09-01, modified: 2016-09-01
Late Paleozoic Xiphosurans
Published in Bulletin of The Museum of Comparative Zoology, in 1944, in volume 94, pages 473-508
Created: 2011-11-08, modified: 2021-04-05