Phormospyris sp. cf. P. ophirensis |
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Benson, R.N., 1983. Quaternary Radiolarians from the Mouth of the Gulf of California, Leg 65 of the Deep Sea Drilling Project. In: Lewis, B.T.R., Robinson, P. et al. [eds]. Initial Reports of the Deep Sea Drilling Project (U.S. Government Printing Office), vol. 65: 491-523. |
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Ehrenberg, C.G., 1873. Mikrogeologischen Studien über das kleinste Leben der Meeres-Tiefgrunde aller Zonen und dessen geologischen Einfluss. Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin, 131-399. |
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