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Additional information on Alainaspis and Boothiaspis, cyathaspidids (Agnatha: Heterostraci) from the Upper Silurian of Northwest Territories, Canada
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- Journal:
- Journal of Paleontology / Volume 65 / Issue 2 / March 1991
- Published online by Cambridge University Press:
- 20 May 2016, pp. 308-313
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A vertebrate fauna from the Middle Devonian Yahatinda Formation of southwestern Canada
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- Journal:
- Journal of Paleontology / Volume 74 / Issue 1 / January 2000
- Published online by Cambridge University Press:
- 14 July 2015, pp. 123-132
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