| 释义 |
Spirifer Palæont.|ˈspaɪərɪfə(r)|
[mod.L. spirifer (Sowerby, 1816), f. L. spīra spire n.3 + -fer bearing.]
A genus of fossil brachiopods, found abundantly in the Silurian, Devonian, and Carboniferous formations, characterized by long highly-developed spiral appendages; a member or species of this genus, or of the family Spiriferidæ of which it is the type. Also attrib.
1835Penny Cycl. III. 125/1 A particular kind of fossil⁓shell, named a spirifer, has indeed been detected in it. 1839H. T. De la Beche Rep. Geol. Cornwall, etc. iii. 47 Those seams which contain casts of broken vertebral columns of..spirifers, and corals. 1872H. A. Nicholson Palæontol. 205 The true Spirifers are mainly Silurian and Devonian. 1890Geikie Class-Bk. Geol. (ed. 2) xix. 266 The Devonian system [contains]..Cypridina-shales, Spirifer sandstone. |