| 释义 |
Senni|ˈsɛnɪ|
The name of a tributary of the River Usk, Powys, S. Wales, used attrib. as Senni Bed, any of a series of fossiliferous sandstones in the Lower Old Red Sandstone of S. Wales, well seen in the valley of the Senni. Usu. pl.
1904A. Strahan Geol. S. Wales Coalfield V. i. 3 Nearly all the remainder of the Old Red [Sandstone] tract is occupied by the red sandstones of the Brownstone division, but a thick and persistent group of sandstones and marls with cornstones, generally characterised by a green colour, appears in some of the deeper valleys, among others that of the Senni, from which fact the name of Senni Beds has been applied to them. 1927Q. Jrnl. Geol. Soc. LXXXIII. 197 The plant-remains are entombed in sage-green arenaceous shales, which are intercalated among the typical sage-green sandstones of the Senni Beds of this locality. 1970R. M. Black Elements Palaeont. xix. 302 (caption) A psilophyte; a primitive vascular plant from the Lower Old Red Sandstone (Senni Beds), South Wales. |