单词 | tentaculite |
释义 | tentaculite Palæont.|tɛnˈtækjʊlaɪt| [ad. mod.L. Tentāculītēs: see tentaculum and -ite1 2 a.] A fossil mollusc of the genus Tentaculites or family Tentaculitidæ (thought by some to be allied to the Pteropods) of which the conical usually ringed shells abound in the Middle Devonian strata. tentaculite beds, strata of the Ilfracombe group of Middle Devonian age, characterized by the abundance of Tentaculites scalaris. tentaculite limestone, in the New York Geological Survey, a subdivision of the Water-lime group of Upper Silurian strata, similarly characterized.
1839Murchison Silur. Syst. ii. 628. 1863 Dana Man. Geol. 252. |

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