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VOL. XIV. (2) RH#TIC ROCKS 137 
Tewkesbury district. Several more fossils might have 
been recorded were it not for the position of these marly 
shales in the cliff. The deposit of black shales (5a) com- 
pletes the Lower Rheetic division, and the Upper Rhetic 
begins with the above-mentioned greenish-yellow shales 
(4), replete with fossils, though chiefly preserved as well 
defined casts. 
The succeeding stratum was termed by Brodie the 
“ Cypris-bed”*; and the underlying deposit (4), together 
with this limestone was classed as the FAs¢£evia-bed by 
Prof. J. Phillips.” The &s¢therza-bed (3) is normally a 
hard yellow nodular limestone, greenish-grey centred, with 
markings analogous to those of the Cotham Marble of the 
Bristol District. Other lithic modifications may be also 
noted. The organic contents of the Es¢herza-bed, Lstherie, 
Nawadite, Ostracoda and fish scales, clearly demonstrate 
that it is not on the same horizon as the Bristol Cotham 
Marble, or “ Landscape Stone.” Sometimes the Zstherza- 
bed is present as a cream-coloured argillaceous limestone, 
with yellowish streaks, and not “dendritically” marked. 
The £s¢herza-bed containsan exceptionally interesting series 
of fossils. As the name implies, As¢herza is the typical 
fossil. Prof. T. Rupert Jones in his Monograph figured 
specimens from Wainlode, which “vie with specimens of 
Estheria minuta from Pendock in their good state of 
preservation,” under the specific name of Estheria minuta 
var. Lrodieana. The following passage in his work 
presents several points of interest :—“ The specimens [of 
the Zstheria-bed] from Wainlode Cliff consist of a bluish- 
grey limestone (weathering brownish-grey), full of dark- 
brown “stherie (PI. ii., Figs. 12-15), retaining their shell 
and their convex form, and lying in the matrix in every 
position. Some of these specimens are in the Museums 
1 “ Fossil Insects,” p. 59. 2 “Geology of Oxford, etc.,” p. 104. 
3 “Fossil Estheriae,” Pal. Soc. (1862), pp. 66-78. 
