Newton, C. R.; Whalen, M. T.; Thompson, J. B.; Prins, N.; Delalla, D. (1987). Systematics and Paleoecology of Norian (Late Triassic) Bivalves from a Tropical Island Arc: Wallowa Terrane, Oregon. Memoir, The Paleontological Society. 22: 1-83.
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Newton, C. R.; Whalen, M. T.; Thompson, J. B.; Prins, N.; Delalla, D.
1987
Systematics and Paleoecology of Norian (Late Triassic) Bivalves from a Tropical Island Arc: Wallowa Terrane, Oregon