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| Original Usage: | Sphenolithus Deflandre in Grassé, 1952 | |
|---|---|---|
| 等级: | Genus |
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| 拼法: | Sphenolithus | |
| 著作权: | Deflandre in Grassé, 1952 in |
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| 发表: | The Mont-des-Récollets section (N France): a key site for the Ypresian-Lutetian transition at mid-latitudes – reassessment of the boundary criterion for the base-Lutetian GSSP. Geodiversitas 43(11): 311-363. | |
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