applied to graptolites having four rows of thecæ showing four serrated edges.
| 单词 | θ31477 |
| 释义 | the world > animals > invertebrates > zoophyte > [adjective] > of or relating to graptolites > having four rows of thecae with serrated edges (1) tetraprionidian1888 applied to graptolites having four rows of thecæ showing four serrated edges. |
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