Blake, D. B.; Allison, R. C. (1970). A new west American Eocene species of the Recent Australian ophiuroid Ophiocrossota. Journal of Paleontology. 44(5): 925-927.
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Blake, D. B.; Allison, R. C.
1970
A new west American Eocene species of the Recent Australian ophiuroid Ophiocrossota