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|a New species of the Cyathaspidid Poraspis (Agnatha : Heterostraci) from the Late Silurian and Early Devonian of Northwest territories, Canada /
|c David K. Elliot, Elizabeth J. Loeffler and Yuhai Liu.
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| 260 |
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|a ,
|c 1998
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|b ca. 20 refs.
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|b ca. 20 refs.
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|a 71
|2 71
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|a Elliott, David K..
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|a Loeffler, Elizabeth J..
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|a Liu, Yuhai.
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|a p. 360-370
|b il.
|c 28 cm.
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|c AR-RiUNS
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| 866 |
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| 773 |
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|t JOURNAL of Paleontology
|w J3
|g Vol. 72, n. 2 (Mar. 1998)
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| 942 |
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|c PP
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| 999 |
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|c 22019
|d 22019
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