1870.] ETHERIDGE—DBRISLOL DOLOMITIC CONGLOMERATE. 191 
9. TABLE oF THE CLASSIFICATION oF THE BritisH Tras, AND ITS 
Forrien HQuivaLENts, FRoM THE RH MTIC SERIES DOWNWARDS. 
Foreign 
equivalents. 
Al. Rheetic, or Pennarth beds, finely exposed at Pennarth, | y:. te -conep 
Watchett, Westbury, Aust-passage, Uphill, Min- = aa oe ae 
lode, Coombe Hill, &e. &e. | Schichten. 
A2. New Red Marl. Red Marls with bands of grey marly \ 
clay, occasionally micaceous, and numerous lenti- 
| Keuper. 
cular masses and veins of Gypsum and Rock Salt *. { >) I ao 
Marnes !ri- 
Bivalve crustacea(stheria). Rhizopoda in Leicester- : 
i oie) : : sées, 
shire, at the base, at its junction with the Keuper 
Sandstone. 
A3. Keuper Sandstone. Laminated Sandstone, and inter- \ 
73) stratified Marls (water-stones), passing down into 
5 (variously coloured) pale and deep-red Sandstones. 
(a) In the centre of England it has a calcareous conglo- 
os merate or breccia at the base. Inthe west of Kng- } Letten-Kohle. 
oO land this appears to be replaced or represented in ! 
A time by the Dolomitic or Dinosaurian conglomerate 
nD which covers the older rocks of the Bristol coal- 
, basin. ) 
fe 
& | B. Muschelkalk or Caleaire ecquillien (?), wanting in Eng- Ps Muschelkalk. 
land, unless represented by the Dolomitic Conglo- Caleaire co- 
merate. i quillien. 
C 1. Upper Mottled Sandstone. Soft bright-red and varie- \ 
gated sandstones (without pebbles). 
S ( 1 ») Bunter Sand- 
rT 515 L : stein. We 
C 2. Pebble-beds. Harder reddish-brown sandstone, with Sven [outs 
(ean Ser acand : ° bigarré, or 
quartzose pebbles, passing into conglomerate, with +} A°. : 
: 2 Grés des 
a base of calcareous breccia. 
Vosges (in 
C 3. Lower Mottled Sandstone. Soft bright-red and yva- Bary), 
riegated sandstones without pebbles. y) 
Permian. 
Discussion. 
The Presipenr inquired on what ground the author considered 
these Reptiles to belong to a late period in the Keuper, and was 
informed that the author spoke especially with relation to the 
Keuper of the Bristol area, of which the beds containing them 
occupied the highest position. 
Prof. Ramsay regarded these conglomerates not merely as of 
aqueous origin, but as breccias which had covered the old land surface 
which had been worked up by the water of the New Red period. 
He objected to the term Sea having been introduced into the paper, 
as, though the tracts may have been islands and promontories, and 
though the water which surrounded them was salt, there was no 
open sea, but merely a large inland salt lake, in which the New 
Red Marl was formed. The marl was less connected with the New 
Red Sandstone than with the Lias. The Muschelkalk being absent, 
* None in the Bristol area, 
