Sennin.

/ˈsɛni/

Etymology: < Senni, the name of a tributary of the River Usk, Powys, South Wales.

Used attributively as Senni Bed n. any of a series of fossiliferous sandstones in the Lower Old Red Sandstone of South Wales, well seen in the valley of the Senni. Usually in plural.

ΚΠ

1904 A. Strahan Geol. S. Wales Coal-field 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.

1927 Q. Jrnl. Geol. Soc. 83 197 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.

1970 R. M. Black Elements Palaeontol. xix. 302 (caption) A psilophyte; a primitive vascular plant from the Lower Old Red Sandstone (Senni Beds), South Wales.

This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2019).

单词	senni
释义	Sennin. /ˈsɛni/ Etymology: < Senni, the name of a tributary of the River Usk, Powys, South Wales. Used attributively as Senni Bed n. any of a series of fossiliferous sandstones in the Lower Old Red Sandstone of South Wales, well seen in the valley of the Senni. Usually in plural. ΚΠ 1904 A. Strahan Geol. S. Wales Coal-field 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. 1927 Q. Jrnl. Geol. Soc. 83 197 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. 1970 R. M. Black Elements Palaeontol. xix. 302 (caption) A psilophyte; a primitive vascular plant from the Lower Old Red Sandstone (Senni Beds), South Wales. This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2019). < n.1904
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