A MEMOm OF ROBERT ETHERIDGE, P.R.S. 183 
a cliff and railway-cutting, where the “ Bristol Bone-bed ” 
has yielded so many fine vertebrate remains, and where 
the Landscape Marble of Gotham is locally so well 
developed. The grouping of the Grey marls that occur 
below the Black shales, with the Rhsetic rather than with 
the Keuper formation, has led to frequent criticism, and 
it will not be out of place, therefore, to refer more particu- 
larly to Etheridge\s views on this subject. In his paper 
on the Rhsetic Beds at Garden Cliff, Westbury-on- 
Severn, he included with the Red (Keuper) Marls sixteen 
feet of “ alternating bands of grey and red fissile and 
conchoidal Marls (No. 1 in section), apparently here con- 
taining no fossils.” He added that these Marls corre- 
spond in position and age to the same (but lithologically 
rather different) beds at Watchett, Penarth, and Puriton, 
at which places I have termed them ' Tea-green Marls,’ 
from the peculiar hue of the freshly-fractured shales when 
exposed, and the constancy of their conditions.” ^ 
Above these “ Tea-green ” Keuper Marls there is a 
series of Grey Marls (17 ft. 3 in. thick), which he linked 
with the Rhsetic Beds, on the ground of “ Collateral 
evidence, and equivalent beds, as determined through 
correlation with other sections, with the occurrence of 
fish and other remains in these pale grey Marls.” He 
regarded them as the equivalents of the Tubingen 
sandstones and marls of Quenstedt.” 
A good deal of discussion has taken place with reference 
to the so-called “ Tea-green Marls,” and it has not been 
recognized that Etheridge originally placed them in the 
Keuper, and distinguished them from the Grey Marls which 
frequently form the base of the Rhsetic. This is not to 
be wondered at when we find that the descriptions in his 
text do not tally with his diagrams. Thus, the brackets in 
his Penarth section show the Tea-green Marls as extending 
1 Proc. Ootteswold Club, vol. iii. pp. 220, 221. 
