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The Silurian Encrinurine Trilobite Pacificurus: New Species from North America
Gregory D. Edgecombe and Lars Ramsköld
Journal of Paleontology
Vol. 66, No. 2 (Mar., 1992), pp. 255-262
Published by: Paleontological Society
Stable URL: http://www.jstor.org/stable/1305911
Page Count: 8
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The first Laurentian records of Pacificurus Ramsköld, 1986 are provided by Pacificus chilorhodus n. sp. (latest Llandovery?--early Wenlock, Mackenzie Mountains, Canada) and Pacificurus sp. A (early Ludlow, northern Maine). These closely related species represent an early divergence (minimally late Llandovery) from Australian/Asian congenerics.
Journal of Paleontology © 1992 Paleontological Society