Palaeontology. In trilobites: the point at which any given segment making up the pleura begins to curve downwards.
| 单词 | θ33548 |
| 释义 | the world > animals > invertebrates > phylum Arthropoda > trilobites > [noun] > member of > point where pleurae are bent and divided (1) fulcrum1847 Palaeontology. In trilobites: the point at which any given segment making up the pleura begins to curve downwards. |
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