Smith, J. T. (1991). Cenozoic giant pectinids from California and the Tertiary Caribbean Province: Lyropecten, "Macrochlamys," Vertipecten, and Nodipecten species. United States Geological Survey Professional Paper. 1391: v + 1-155, figs. 1-18, pls. 1-38. U.S. Government Printing Office, Washington, D.C.
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Smith, J. T.
1991
Cenozoic giant pectinids from California and the Tertiary Caribbean Province: <i>Lyropecten</i>, "<i>Macrochlamys</i>," <i>Vertipecten</i>, and <i>Nodipecten</i> species
United States Geological Survey Professional Paper
1391: v + 1-155, figs. 1-18, pls. 1-38. U.S. Government Printing Office, Washington, D.C.